{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T08:10:08Z","timestamp":1789978208449,"version":"4.0.1"},"reference-count":160,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2019,5,6]],"date-time":"2019-05-06T00:00:00Z","timestamp":1557100800000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Reprod Health"],"published-print":{"date-parts":[[2019,12]]},"DOI":"10.1186\/s12978-019-0722-9","type":"journal-article","created":{"date-parts":[[2019,5,6]],"date-time":"2019-05-06T15:00:10Z","timestamp":1557154810000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":36,"title":["Reported oral and anal sex among adolescents and adults reporting heterosexual sex in sub-Saharan Africa: a systematic review"],"prefix":"10.1186","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7448-4824","authenticated-orcid":false,"given":"Imran O.","family":"Morhason-Bello","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Severin","family":"Kabakama","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kathy","family":"Baisley","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Suzanna C.","family":"Francis","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Deborah","family":"Watson-Jones","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2019,5,6]]},"reference":[{"issue":"12","key":"722_CR1","doi-asserted-by":"publisher","first-page":"1705","DOI":"10.1093\/cid\/cix243","volume":"64","author":"G van Liere","year":"2017","unstructured":"van Liere G, Dukers-Muijrers N, Levels L, Hoebe C. High proportion of anorectal chlamydia trachomatis and Neisseria gonorrhoeae after routine universal urogenital and anorectal screening in women visiting the sexually transmitted infection clinic. Clin Infect Dis. 2017;64(12):1705\u201310.","journal-title":"Clin Infect Dis"},{"issue":"3","key":"722_CR2","doi-asserted-by":"publisher","first-page":"169","DOI":"10.1016\/j.otorri.2016.04.003","volume":"68","author":"C Fernandez-Lopez","year":"2017","unstructured":"Fernandez-Lopez C, Morales-Angulo C. Otorhinolaryngology manifestations secondary to oral sex. Acta Otorrinolaringol Esp. 2017;68(3):169\u201380.","journal-title":"Acta Otorrinolaringol Esp"},{"key":"722_CR3","doi-asserted-by":"publisher","first-page":"293","DOI":"10.1186\/s12879-016-1633-9","volume":"16","author":"S Taylor","year":"2016","unstructured":"Taylor S, Bunge E, Bakker M, Castellsague X. The incidence, clearance and persistence of non-cervical human papillomavirus infections: a systematic review of the literature. BMC Infect Dis. 2016;16:293.","journal-title":"BMC Infect Dis"},{"issue":"8","key":"722_CR4","doi-asserted-by":"publisher","first-page":"e011312","DOI":"10.1136\/bmjopen-2016-011312","volume":"6","author":"I Velicko","year":"2016","unstructured":"Velicko I, Ploner A, Sparen P, Marions L, Herrmann B, Kuhlmann-Berenzon S. Sexual and testing behaviour associated with chlamydia trachomatis infection: a cohort study in an STI clinic in Sweden. BMJ Open. 2016;6(8):e011312.","journal-title":"BMJ Open"},{"key":"722_CR5","doi-asserted-by":"publisher","first-page":"5758387","DOI":"10.1155\/2016\/5758387","volume":"2016","author":"PA Chan","year":"2016","unstructured":"Chan PA, Robinette A, Montgomery M, Almonte A, Cu-Uvin S, Lonks JR, Chapin KC, Kojic EM, Hardy EJ. Extragenital infections caused by chlamydia trachomatis and Neisseria gonorrhoeae: a review of the literature. Infect Dis Obstet Gynecol. 2016;2016:5758387.","journal-title":"Infect Dis Obstet Gynecol"},{"issue":"1","key":"722_CR6","doi-asserted-by":"publisher","first-page":"20","DOI":"10.1111\/cdoe.12255","volume":"45","author":"James A. Chancellor","year":"2016","unstructured":"Chancellor JA, Ioannides SJ, Elwood JM. Oral and oropharyngeal cancer and the role of sexual behaviour: a systematic review. Community Dent Oral Epidemiol. 2017;45(1):20\u201334. \n                    https:\/\/doi.org\/10.1111\/cdoe.12255","journal-title":"Community Dentistry and Oral Epidemiology"},{"issue":"41","key":"722_CR7","doi-asserted-by":"publisher","first-page":"15262","DOI":"10.3748\/wjg.v20.i41.15262","volume":"20","author":"R Assi","year":"2014","unstructured":"Assi R, Hashim PW, Reddy VB, Einarsdottir H, Longo WE. Sexually transmitted infections of the anus and rectum. World J Gastroenterol. 2014;20(41):15262\u20138.","journal-title":"World J Gastroenterol"},{"issue":"10","key":"722_CR8","doi-asserted-by":"publisher","first-page":"2895","DOI":"10.1007\/s10461-016-1635-z","volume":"21","author":"Ann O\u2019Leary","year":"2017","unstructured":"O\u2019Leary A, DiNenno E, Honeycutt A, Allaire B, Neuwahl S, Hicks K, Sansom S. Contribution of anal sex to HIV prevalence among heterosexuals: a modeling analysis. AIDS Behav. 2017;21(10):2895\u20132903. \n                    https:\/\/doi.org\/10.1007\/s10461-016-1635-z","journal-title":"AIDS and Behavior"},{"issue":"10","key":"722_CR9","doi-asserted-by":"publisher","first-page":"1509","DOI":"10.1097\/QAD.0000000000000298","volume":"28","author":"P Patel","year":"2014","unstructured":"Patel P, Borkowf CB, Brooks JT, Lasry A, Lansky A, Mermin J. Estimating per-act HIV transmission risk: a systematic review. Aids. 2014;28(10):1509\u201319.","journal-title":"Aids"},{"key":"722_CR10","doi-asserted-by":"publisher","unstructured":"Owen BN, Baggaley RF, Elmes J, Harvey A, Shubber Z, Butler AR, Silhol R, Anton P, Shacklett B, van der Straten A, Boily MC. What Proportion of Female Sex Workers Practise anal Intercourse and How Frequently? A Systematic Review and Meta-analysis. AIDS Behav. 2019. \n                    https:\/\/doi.org\/10.1007\/s10461-019-02477-w\n                    \n                  . [Epub ahead of print]","DOI":"10.1007\/s10461-019-02477-w"},{"issue":"11","key":"722_CR11","doi-asserted-by":"publisher","first-page":"655","DOI":"10.1258\/ijsa.2011.010541","volume":"22","author":"B Brown","year":"2011","unstructured":"Brown B, Blas MM, Cabral A, Carcamo C, Gravitt PE, Halsey N. Oral sex practices, oral human papillomavirus and correlations between oral and cervical human papillomavirus prevalence among female sex workers in Lima, Peru. Int J STD AIDS. 2011;22(11):655\u20138.","journal-title":"Int J STD AIDS"},{"key":"722_CR12","doi-asserted-by":"publisher","first-page":"696","DOI":"10.1186\/s12879-014-0696-8","volume":"14","author":"W Cheng","year":"2014","unstructured":"Cheng W, Tang W, Zhong F, Babu GR, Han Z, Qin F, Gao K, Mai H, Zhao Y, Liang C, et al. Consistently high unprotected anal intercourse (UAI) and factors correlated with UAI among men who have sex with men: implication of a serial cross-sectional study in Guangzhou, China. BMC Infect Dis. 2014;14:696.","journal-title":"BMC Infect Dis"},{"issue":"12","key":"722_CR13","doi-asserted-by":"publisher","first-page":"717","DOI":"10.1089\/apc.1999.13.717","volume":"13","author":"DT Halperin","year":"1999","unstructured":"Halperin DT. Heterosexual anal intercourse: prevalence, cultural factors, and HIV infection and other health risks, part I. AIDS Patient Care STDs. 1999;13(12):717\u201330.","journal-title":"AIDS Patient Care STDs"},{"issue":"1","key":"722_CR14","doi-asserted-by":"publisher","first-page":"910","DOI":"10.1186\/s12889-12017-14891-12886","volume":"17","author":"Q Ma","year":"2017","unstructured":"Ma Q, Jiang J, Pan X, Cai G, Wang H, Zhou X, Jiang T, Chen L. Consistent condom use and its correlates among female sex workers at hair salons: a cross-sectional study in Zhejiang province, China. BMC Public Health. 2017;17(1):910. \n                    https:\/\/doi.org\/10.1186\/s12889-12017-14891-12886\n                    \n                  .","journal-title":"BMC Public Health"},{"issue":"11","key":"722_CR15","doi-asserted-by":"publisher","first-page":"e005166","DOI":"10.1136\/bmjopen-2014-005166","volume":"4","author":"Shreena Ramanathan","year":"2014","unstructured":"Ramanathan S, Nagarajan K, Ramakrishnan L, Mainkar MK, Goswami P, Yadav D, Sen S, George B, Rachakulla H, Subramanian T, et al. Inconsistent condom use by male clients during anal intercourse with occasional and regular female sex workers (FSWs): survey findings from southern states of India. BMJ Open. 2014;4(11):e005166.","journal-title":"BMJ Open"},{"issue":"4","key":"722_CR16","doi-asserted-by":"publisher","first-page":"393","DOI":"10.1016\/j.jinf.2017.1012.1011","volume":"76","author":"E Marra","year":"2018","unstructured":"Marra E, Kroone N, Freriks E, van Dam CL, Alberts CJ, Hogewoning AA, Bruisten S, van Dijk A, Kroone MM, Waterboer T, et al. Vaginal and anal human papillomavirus infection and seropositivity among female sex workers in Amsterdam, the Netherlands: Prevalence, concordance and risk factors. J Infect. 2018;76(4):393\u2013405. \n                    https:\/\/doi.org\/10.1016\/j.jinf.2017.1012.1011\n                    \n                   Epub 2017 Dec 1028.","journal-title":"J Infect"},{"issue":"10","key":"722_CR17","doi-asserted-by":"publisher","first-page":"2318","DOI":"10.1007\/s10461-016-1332-y","volume":"20","author":"G Paz-Bailey","year":"2016","unstructured":"Paz-Bailey G, Noble M, Salo K, Tregear SJ. Prevalence of HIV among U.S. female sex workers: systematic review and meta-analysis. AIDS Behav. 2016;20(10):2318\u201331.","journal-title":"AIDS Behav"},{"issue":"5","key":"722_CR18","doi-asserted-by":"publisher","first-page":"416","DOI":"10.1071\/SH14105","volume":"11","author":"C Rissel","year":"2014","unstructured":"Rissel C, Badcock PB, Smith AM, Richters J, de Visser RO, Grulich AE, Simpson JM. Heterosexual experience and recent heterosexual encounters among Australian adults: the second Australian study of health and relationships. Sex Health. 2014;11(5):416\u201326.","journal-title":"Sex Health"},{"issue":"3","key":"722_CR19","doi-asserted-by":"publisher","first-page":"307","DOI":"10.1016\/j.jadohealth.2007.09.015","volume":"42","author":"RM Gindi","year":"2008","unstructured":"Gindi RM, Ghanem KG, Erbelding EJ. Increases in oral and anal sexual exposure among youth attending sexually transmitted diseases clinics in Baltimore, Maryland. J Adolesc Health. 2008;42(3):307\u20138.","journal-title":"J Adolesc Health"},{"issue":"2","key":"722_CR20","doi-asserted-by":"publisher","first-page":"146","DOI":"10.1111\/j.1467-842X.2003.tb00802.x","volume":"27","author":"RO de Visser","year":"2003","unstructured":"de Visser RO, Smith AM, Rissel CE, Richters J, Grulich AE. Sex in Australia: heterosexual experience and recent heterosexual encounters among a representative sample of adults. Aust N Z J Public Health. 2003;27(2):146\u201354.","journal-title":"Aust N Z J Public Health"},{"issue":"9907","key":"722_CR21","doi-asserted-by":"publisher","first-page":"1781","DOI":"10.1016\/S0140-6736(13)62035-8","volume":"382","author":"CH Mercer","year":"2013","unstructured":"Mercer CH, Tanton C, Prah P, Erens B, Sonnenberg P, Clifton S, Macdowall W, Lewis R, Field N, Datta J, et al. Changes in sexual attitudes and lifestyles in Britain through the life course and over time: findings from the National Surveys of sexual attitudes and lifestyles (Natsal). Lancet. 2013;382(9907):1781\u201394.","journal-title":"Lancet"},{"issue":"7","key":"722_CR22","doi-asserted-by":"publisher","first-page":"1338","DOI":"10.1007\/s10461-015-0997-y","volume":"19","author":"Branwen N. Owen","year":"2015","unstructured":"Owen BN, Brock PM, Butler AR, Pickles M, Brisson M, Baggaley RF, Boily MC. Prevalence and frequency of heterosexual anal intercourse among young people: a systematic review and meta-analysis. AIDS Behav. 2015;19(7):1338\u201360.","journal-title":"AIDS and Behavior"},{"issue":"6","key":"722_CR23","doi-asserted-by":"publisher","first-page":"568","DOI":"10.1071\/SH14105_CO","volume":"12","author":"C Rissel","year":"2015","unstructured":"Rissel C, Badcock PB, Smith AM, Richters J, de Visser RO, Grulich AE, Simpson JM. Corrigendum to: heterosexual experience and recent heterosexual encounters among Australian adults: the second Australian study of health and relationships. Sex Health. 2015;12(6):568.","journal-title":"Sex Health"},{"key":"722_CR24","doi-asserted-by":"publisher","first-page":"49","DOI":"10.11604\/pamj.2015.20.49.2938","volume":"20","author":"EE Tarkang","year":"2015","unstructured":"Tarkang EE. Sexual risk behaviours of high school female learners in Mbonge subdivision of rural Cameroon. Pan Afr Med J. 2015;20:49.","journal-title":"Pan Afr Med J"},{"issue":"1","key":"722_CR25","doi-asserted-by":"publisher","first-page":"9","DOI":"10.1016\/j.srhc.2014.06.004","volume":"6","author":"NA Salih","year":"2015","unstructured":"Salih NA, Metaferia H, Reda AA, Biadgilign S. Premarital sexual activity among unmarried adolescents in northern Ethiopia: a cross-sectional study. Sex Reprod Healthc. 2015;6(1):9\u201313.","journal-title":"Sex Reprod Healthc"},{"issue":"2","key":"722_CR26","doi-asserted-by":"publisher","first-page":"107","DOI":"10.2989\/16085906.2015.1040808","volume":"14","author":"S Naidoo","year":"2015","unstructured":"Naidoo S, Taylor M. HIV health literacy, sexual behaviour and self-reports of having tested for HIV among students. Afr J AIDS Res. 2015;14(2):107\u201315.","journal-title":"Afr J AIDS Res"},{"issue":"3","key":"722_CR27","doi-asserted-by":"publisher","first-page":"209","DOI":"10.4314\/ejhs.v25i3.3","volume":"25","author":"AA Akinsoji","year":"2015","unstructured":"Akinsoji AA, Olufunmilola AA, Idowu AA, Pius AO. Sexual and contraceptive practices among female undergraduates in a Nigerian tertiary institution. Ethiop J Health Sci. 2015;25(3):209\u201316.","journal-title":"Ethiop J Health Sci"},{"issue":"3","key":"722_CR28","first-page":"126","volume":"19","author":"J van der Geugten","year":"2015","unstructured":"van der Geugten J, van Meijel B, den Uyl MH, de Vries NK. Evaluation of a sexual and reproductive health education programme: students\u2019 knowledge, attitude and behaviour in Bolgatanga municipality, northern Ghana. Afr J Reprod Health. 2015;19(3):126\u201336.","journal-title":"Afr J Reprod Health"},{"issue":"3","key":"722_CR29","first-page":"87","volume":"19","author":"N Muntean","year":"2015","unstructured":"Muntean N, Kereta W, Mitchell KR. Addressing the sexual and reproductive health needs of young people in Ethiopia: an analysis of the current situation. Afr J Reprod Health. 2015;19(3):87\u201399.","journal-title":"Afr J Reprod Health"},{"key":"722_CR30","doi-asserted-by":"publisher","unstructured":"Moher D, Liberati A, Tetzlaff J, Altman DG, The PRISMA Group. Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement. J Clin Epidemiol. 2009. \n                    https:\/\/doi.org\/10.1016\/jjclinepi200906005\n                    \n                  .","DOI":"10.1016\/jjclinepi200906005"},{"issue":"15","key":"722_CR31","doi-asserted-by":"publisher","first-page":"2008","DOI":"10.1001\/jama.283.15.2008","volume":"283","author":"DF Stroup","year":"2000","unstructured":"Stroup DF, Berlin JA, Morton SC, Olkin I, Williamson GD, Rennie D, Moher D, Becker BJ, Sipe TA, Thacker SB. Meta-analysis of observational studies in epidemiology: a proposal for reporting. Meta-analysis of observational studies in epidemiology (MOOSE) group. JAMA. 2000;283(15):2008\u201312.","journal-title":"JAMA"},{"key":"722_CR32","unstructured":"Morhason-Bello I, Francis S, Kabakama S, Watson-Jones D. A systematic review on oral and anal sexual behaviour among heterosexually active adolescents and adults in sub-Saharan Africa. In: PROSPERO:CRD42015025311; 2015. Available from \n                    http:\/\/www.crd.york.ac.uk\/PROSPERO\/DisplayPDF.php?ID=CRD42015025311\n                    \n                  . Accessed 3 May 2019."},{"key":"722_CR33","doi-asserted-by":"publisher","first-page":"e011458","DOI":"10.1136\/bmjopen-2016-011458","volume":"6","author":"MJ Downes","year":"2016","unstructured":"Downes MJ, Brennan ML, Williams HC, Dean RS. Development of a critical appraisal tool to assess the quality of cross-sectional studies (AXIS). BMJ Open. 2016;6:e011458.","journal-title":"BMJ Open"},{"key":"722_CR34","unstructured":"Critical appraisal skills programme (CASP) qualitative research checklist. 2017. Available at: \n                    https:\/\/casp-uk.net\/wp-content\/uploads\/2018\/01\/CASP-Qualitative-Checklist-2018.pdf\n                    \n                  . Accessed 3 May 2019."},{"issue":"1","key":"722_CR35","doi-asserted-by":"publisher","first-page":"15","DOI":"10.1007\/BF01541209","volume":"8","author":"F Soyinka","year":"1979","unstructured":"Soyinka F. Sexual behavior among university students in Nigera. Arch Sex Behav. 1979;8(1):15\u201326.","journal-title":"Arch Sex Behav"},{"issue":"8454","key":"722_CR36","doi-asserted-by":"crossref","first-page":"524","DOI":"10.1016\/S0140-6736(85)90462-3","volume":"2","author":"P Van de Perre","year":"1985","unstructured":"Van de Perre P, Clumeck N, Carael M, Nzabihimana E, Robert-Guroff M, De Mol P, Freyens P, Butzler JP, Gallo RC, Kanyamupira JB. Female prostitutes: a risk group for infection with human T-cell lymphotropic virus type III. Lancet. 1985;2(8454):524\u20137.","journal-title":"Lancet"},{"issue":"3","key":"722_CR37","doi-asserted-by":"publisher","first-page":"269","DOI":"10.1080\/09540128908253032","volume":"1","author":"D Wilson","year":"1989","unstructured":"Wilson D, Chiroro P, Lavelle S, Mutero C. Sex worker, client sex behaviour and condom use in Harare, Zimbabwe. AIDS Care. 1989;1(3):269\u201380.","journal-title":"AIDS Care"},{"issue":"34","key":"722_CR38","doi-asserted-by":"publisher","first-page":"285","DOI":"10.1080\/02673843.1994.9747742","volume":"4","author":"A Akande","year":"1994","unstructured":"Akande A. AIDS-related beliefs and behaviours of students: evidence from two countries (Zimbabwe and Nigeria). Int J Adolesc Youth. 1994;4(34):285\u2013303.","journal-title":"Int J Adolesc Youth"},{"issue":"4","key":"722_CR39","doi-asserted-by":"publisher","first-page":"455","DOI":"10.1016\/S0277-9536(96)00164-5","volume":"44","author":"DA Feldman","year":"1997","unstructured":"Feldman DA, O\u2019Hara P, Baboo KS, Chitalu NW, Lu Y. HIV prevention among Zambian adolescents: developing a value utilization\/norm change model. Soc Sci Med. 1997;44(4):455\u201368.","journal-title":"Soc Sci Med"},{"issue":"5","key":"722_CR40","doi-asserted-by":"publisher","first-page":"571","DOI":"10.1080\/09540129848433","volume":"10","author":"E Matasha","year":"1998","unstructured":"Matasha E, Ntembelea T, Mayaud P, et al. Sexual and reproductive health among primary and secondary school pupils in Mwanza, Tanzania: need for intervention. AIDS Care. 1998;10(5):571\u201382.","journal-title":"AIDS Care"},{"issue":"1","key":"722_CR41","doi-asserted-by":"publisher","first-page":"37","DOI":"10.1080\/00926230490247264","volume":"30","author":"LJ Nicholas","year":"2004","unstructured":"Nicholas LJ. The association between religiosity, sexual fantasy, participation in sexual acts, sexual enjoyment, exposure, and reaction to sexual materials among black south Africans. J Sex Marital Ther. 2004;30(1):37\u201342.","journal-title":"J Sex Marital Ther"},{"issue":"1","key":"722_CR42","doi-asserted-by":"publisher","first-page":"58","DOI":"10.1111\/j.1365-3156.2004.01344.x","volume":"10","author":"EN Nnoruka","year":"2005","unstructured":"Nnoruka EN, Ezeoke AC. Evaluation of syphilis in patients with HIV infection in Nigeria. Trop Med Int Health. 2005;10(1):58\u201364.","journal-title":"Trop Med Int Health"},{"issue":"6","key":"722_CR43","doi-asserted-by":"publisher","first-page":"592","DOI":"10.1080\/01443610500239511","volume":"25","author":"II Okafor","year":"2005","unstructured":"Okafor II, Obi SN. Sexual risk behaviour among undergraduate students in Enugu, Nigeria. J Obstet Gynaecol. 2005;25(6):592\u20135.","journal-title":"J Obstet Gynaecol"},{"issue":"5","key":"722_CR44","doi-asserted-by":"publisher","first-page":"553","DOI":"10.1097\/QAI.0b013e31817bebd7","volume":"48","author":"DH Cornman","year":"2008","unstructured":"Cornman DH, Kiene SM, Christie S, Fisher WA, Shuper PA, Pillay S, Friedland GH, Thomas CM, Lodge L, Fisher JD. Clinic-based intervention reduces unprotected sexual behavior among HIV-infected patients in KwaZulu-Natal, South Africa: results of a pilot study. J Acquir Immune Defic Syndr. 2008;48(5):553\u20136.","journal-title":"J Acquir Immune Defic Syndr"},{"issue":"2","key":"722_CR45","first-page":"89","volume":"12","author":"IO Morhason-Bello","year":"2008","unstructured":"Morhason-Bello IO, Oladokun A, Enakpene CA, Fabamwo AO, Obisesan KA, Ojengbede OA. Sexual behaviour of in-school adolescents in Ibadan, south-West Nigeria. Afr J Reprod Health. 2008;12(2):89\u201397.","journal-title":"Afr J Reprod Health"},{"issue":"6","key":"722_CR46","doi-asserted-by":"publisher","first-page":"687","DOI":"10.1080\/09595230802245253","volume":"27","author":"A Pl\u00fcddemann","year":"2008","unstructured":"Pl\u00fcddemann A, Flisher AJ, Mathews C, Carney T, Lombard C. Adolescent methamphetamine use and sexual risk behaviour in secondary school students in Cape Town, South Africa. Drug Alcohol Rev. 2008;27(6):687\u201392.","journal-title":"Drug Alcohol Rev"},{"issue":"21","key":"722_CR47","first-page":"387","volume":"2009","author":"JO Bamidele","year":"2009","unstructured":"Bamidele JO, Abodunrin OL, Adebimpe WO. Sexual behavior and risk of HIV\/AIDS among adolescents in public secondary schools in Osogbo, Osun state, Nigeria. Int J Adolesc Med Health. 2009;2009(21):387\u201394.","journal-title":"Int J Adolesc Med Health"},{"key":"722_CR48","doi-asserted-by":"publisher","first-page":"373","DOI":"10.1186\/1471-2458-9-373","volume":"9","author":"MR Kazaura","year":"2009","unstructured":"Kazaura MR, Masatu MC. Sexual practices among unmarried adolescents in Tanzania. BMC Public Health. 2009;9:373.","journal-title":"BMC Public Health"},{"issue":"8","key":"722_CR49","doi-asserted-by":"publisher","first-page":"1105","DOI":"10.3109\/00016341003801672","volume":"89","author":"B Opoku","year":"2010","unstructured":"Opoku B. Contraceptive use among \u2018at-risk\u2019 women in a metropolitan area in Ghana. Acta Obstet Gynecol Scand. 2010;89(8):1105\u20137.","journal-title":"Acta Obstet Gynecol Scand"},{"issue":"2","key":"722_CR50","first-page":"69","volume":"8","author":"ES Maswanya","year":"2011","unstructured":"Maswanya ES, Moji K, Aoyagi K, Takemoto T. Sexual behavior and condom use in female students in Dar-es-Salaam, Tanzania: differences by steady and casual partners. East Afr J Public Health. 2011;8(2):69\u201376.","journal-title":"East Afr J Public Health"},{"issue":"6","key":"722_CR51","doi-asserted-by":"crossref","first-page":"870","DOI":"10.3855\/jidc.2636","volume":"15","author":"W Chege","year":"2012","unstructured":"Chege W, Pals SL, McLellan-Lemal E, Shinde S, Nyambura M, Otieno FO, Gust DA, Chen RT, Thomas T. Baseline findings of an HIV incidence cohort study to prepare for future HIV prevention clinical trials in Kisumu, Kenya. J Infect Dev Ctries. 2012;15(6):870\u201380.","journal-title":"J Infect Dev Ctries"},{"key":"722_CR52","doi-asserted-by":"publisher","first-page":"5","DOI":"10.1186\/1471-2458-12-5","volume":"12","author":"A Cherie","year":"2012","unstructured":"Cherie A, Berhane Y. Oral and anal sex practices among high school youth in Addis Ababa, Ethiopia. BMC Public Health. 2012;12:5.","journal-title":"BMC Public Health"},{"issue":"1","key":"722_CR53","first-page":"8","volume":"12","author":"K Peltzer","year":"2012","unstructured":"Peltzer K. Correlates of HIV infection among people visiting public HIV counseling and testing clinics in Mpumalanga, South Africa. Afr Health Sci. 2012;12(1):8\u201316.","journal-title":"Afr Health Sci"},{"key":"722_CR54","doi-asserted-by":"publisher","first-page":"31","DOI":"10.1186\/1472-698X-13-31","volume":"13","author":"A Gevers","year":"2013","unstructured":"Gevers A, Mathews C, Cupp P, Russell M, Jewkes R. Illegal yet developmentally normative: a descriptive analysis of young, urban adolescents\u2019 dating and sexual behaviour in Cape Town, South Africa. BMC Int Health Hum Rights. 2013;13:31.","journal-title":"BMC Int Health Hum Rights"},{"issue":"2","key":"722_CR55","doi-asserted-by":"publisher","first-page":"235","DOI":"10.1080\/13691058.2012.738829","volume":"15","author":"DC Kakoko","year":"2013","unstructured":"Kakoko DC. Reported heterosexual intercourse and related behaviours among primary school pupils in Kinondoni district, Dar es Salaam, Tanzania. Cult Health Sex. 2013;15(2):235\u201345.","journal-title":"Cult Health Sex"},{"key":"722_CR56","doi-asserted-by":"publisher","first-page":"83","DOI":"10.1186\/1742-4755-11-83","volume":"11","author":"MO Folayan","year":"2014","unstructured":"Folayan MO, Odetoyinbo M, Brown B, Harrison A. Differences in sexual behaviour and sexual practices of adolescents in Nigeria based on sex and self-reported HIV status. Reprod Health. 2014;11:83.","journal-title":"Reprod Health"},{"issue":"3","key":"722_CR57","doi-asserted-by":"publisher","first-page":"256","DOI":"10.1258\/0956462053420220","volume":"16","author":"KL Dunkle","year":"2005","unstructured":"Dunkle KL, Beksinska ME, Rees VH, Ballard RC, Htun Y, Wilson ML. Risk factors for HIV infection among sex workers in Johannesburg, South Africa. Int J STD AIDS. 2005;16(3):256\u201361.","journal-title":"Int J STD AIDS"},{"issue":"9654","key":"722_CR58","doi-asserted-by":"publisher","first-page":"1977","DOI":"10.1016\/S0140-6736(08)61842-5","volume":"372","author":"S Skoler-Karpoff","year":"2008","unstructured":"Skoler-Karpoff S, Ramjee G, Ahmed K, Altini L, Plagianos MG, Friedland B, Govender S, De Kock A, Cassim N, Palanee T, et al. Efficacy of Carraguard for prevention of HIV infection in women in South Africa: a randomised, double-blind, placebo-controlled trial. Lancet. 2008;372(9654):1977\u201387.","journal-title":"Lancet"},{"issue":"2","key":"722_CR59","doi-asserted-by":"publisher","first-page":"95","DOI":"10.1258\/ijsa.2008.008207","volume":"20","author":"KM Andersson","year":"2009","unstructured":"Andersson KM, Van Niekerk RM, Niccolai LM, Mlungwana ON, Holdsworth I, Bogoshi M, McIntyre JA, Gray GE, Vardas E. Sexual risk behaviour of the first cohort undergoing screening for enrollment into phase I\/II HIV vaccine trials in South Africa. Int J STD AIDS. 2009;20(2):95\u2013101.","journal-title":"Int J STD AIDS"},{"issue":"8","key":"722_CR60","doi-asserted-by":"publisher","first-page":"e21528","DOI":"10.1371\/journal.pone.0021528","volume":"6","author":"A Nel","year":"2011","unstructured":"Nel A, Louw C, Hellstrom E, Braunstein SL, Treadwell I, Marais M, de Villiers M, Hugo J, Paschke I, Andersen C, et al. HIV prevalence and incidence among sexually active females in two districts of South Africa to determine microbicide trial feasibility. PloS One. 2011;6(8):e21528.","journal-title":"PloS One"},{"issue":"2","key":"722_CR61","doi-asserted-by":"publisher","first-page":"e30669","DOI":"10.1371\/journal.pone.0030669","volume":"7","author":"F van Loggerenberg","year":"2012","unstructured":"van Loggerenberg F, Dieter AA, Sobieszczyk ME, Werner L, Grobler A, Mlisana K, Team CAIS. HIV prevention in high-risk women in South Africa: condom use and the need for change. PLoS One. 2012;7(2):e30669.","journal-title":"PLoS One"},{"key":"722_CR62","doi-asserted-by":"publisher","first-page":"532","DOI":"10.1186\/1756-0500-6-532","volume":"6","author":"Z Gaffoor","year":"2013","unstructured":"Gaffoor Z, Wand H, Daniels B, Ramjee G. High risk sexual behaviors are associated with sexual violence among a cohort of women in Durban, South Africa. BMC Res Notes. 2013;6:532.","journal-title":"BMC Res Notes"},{"issue":"2","key":"722_CR63","doi-asserted-by":"publisher","first-page":"117","DOI":"10.1177\/095646249400500208","volume":"5","author":"HA Cossa","year":"1994","unstructured":"Cossa HA, Gloyd S, Vaz RG, Folgosa E, Simbine E, Diniz M, Kreiss JK. Syphilis and HIV infection among displaced pregnant women in rural Mozambique. Int J STD AIDS. 1994;5(2):117\u201323.","journal-title":"Int J STD AIDS"},{"issue":"2","key":"722_CR64","first-page":"101","volume":"9","author":"ED Sallah","year":"1999","unstructured":"Sallah ED, Grunitzky-Bekele M, Bassabi K, Dodzro K, Sadzo A, Balogou AK, Grunitzky EK, Gaudreau L. The sexual behavior, knowledge and attitudes towards aids and sexually transmitted diseases of students at the University of Benin (Togo). Cahiers Sante. 1999;9(2):101\u20139.","journal-title":"Cahiers Sante"},{"issue":"1","key":"722_CR65","doi-asserted-by":"publisher","first-page":"93","DOI":"10.1097\/01.qai.0000243126.75153.3c","volume":"44","author":"D Operario","year":"2007","unstructured":"Operario D, Pettifor A, Cluver L, MacPhail C, Rees H. Prevalence of parental death among young people in South Africa and risk for HIV infection. J Acquir Immune Defic Syndr. 2007;44(1):93\u20138.","journal-title":"J Acquir Immune Defic Syndr"},{"issue":"3","key":"722_CR66","first-page":"159","volume":"20","author":"F Ambaw","year":"2010","unstructured":"Ambaw F, Mossie A, Gobena T. Sexual practices and their development pattern among Jimma university students. Ethiopian J Health Sci. 2010;20(3):159\u201367.","journal-title":"Ethiopian J Health Sci"},{"issue":"7","key":"722_CR67","doi-asserted-by":"publisher","first-page":"545","DOI":"10.1136\/sextrans-2011-050319","volume":"88","author":"FA Guedou","year":"2012","unstructured":"Guedou FA, Damme L, Mirembe F, Solomon S, Becker M, Deese J, Crucitti T, Alary M. Intermediate vaginal flora is associated with HIV prevalence as strongly as bacterial vaginosis in a cross-sectional study of participants screened for a randomised controlled trial. Sex Transm Infect. 2012;88(7):545\u201351.","journal-title":"Sex Transm Infect"},{"key":"722_CR68","doi-asserted-by":"publisher","first-page":"15","DOI":"10.2147\/AHMT.S54339","volume":"5","author":"OS Asekun-Olarinmoye","year":"2014","unstructured":"Asekun-Olarinmoye OS, Asekun-Olarinmoye EO, Adebimpe WO, Omisore AG. Effect of mass media and internet on sexual behavior of undergraduates in Osogbo metropolis, Southwestern Nigeria. Adolesc Health Med Ther. 2014;5:15\u201323.","journal-title":"Adolesc Health Med Ther"},{"key":"722_CR69","doi-asserted-by":"publisher","first-page":"557","DOI":"10.1186\/s12889-016-3207-6","volume":"16","author":"JH Dubbink","year":"2016","unstructured":"Dubbink JH, van der Eem L, McIntyre JA, Mbambazela N, Jobson GA, Ouburg S, Morre SA, Struthers HE, Peters RP. Sexual behaviour of women in rural South Africa: a descriptive study. BMC Public Health. 2016;16:557.","journal-title":"BMC Public Health"},{"issue":"1","key":"722_CR70","doi-asserted-by":"publisher","first-page":"98","DOI":"10.29063\/ajrh2016\/v20i1.10","volume":"20","author":"UM Lawan","year":"2016","unstructured":"Lawan UM, Amole GT, Shuaib MJ. Sexual health of prison inmates: a case study of Kano central prison, north western Nigeria. Afr J Reprod Health. 2016;20(1):98\u2013103.","journal-title":"Afr J Reprod Health"},{"key":"722_CR71","doi-asserted-by":"publisher","first-page":"172","DOI":"10.3389\/fpubh.2017.00172","volume":"5","author":"EO Dareng","year":"2017","unstructured":"Dareng EO, Adebamowo SN, Eseyin OR, Odutola MK, Pharoah PP, Adebamowo CA. Test\u2013retest reliability of self-reported sexual behavior history in urbanized Nigerian women. Front Public Health. 2017;5:172. \n                    https:\/\/doi.org\/10.3389\/fpubh.2017.00172\n                    \n                   eCollection 02017.","journal-title":"Front Public Health"},{"issue":"3","key":"722_CR72","doi-asserted-by":"publisher","first-page":"e0192982","DOI":"10.1371\/journal.pone.0192982","volume":"13","author":"DJ Davey","year":"2018","unstructured":"Davey DJ, Farley E, Gomba Y, Coates T, Myer L. Sexual risk during pregnancy and postpartum periods among HIV-infected and -uninfected South African women: Implications for primary and secondary HIV prevention interventions. PLoS One. 2018;13(3):e0192982.","journal-title":"PLoS One"},{"issue":"7","key":"722_CR73","doi-asserted-by":"publisher","first-page":"821","DOI":"10.1080\/09540121.2018.1426824","volume":"30","author":"M Ybarra","year":"2018","unstructured":"Ybarra M, Price-Feeney M, Mwaba K. Prevalence and correlates of anal sex among secondary school students in Cape Town, South Africa. AIDS Care. 2018;30(7):821\u20139.","journal-title":"AIDS Care"},{"issue":"12","key":"722_CR74","doi-asserted-by":"publisher","first-page":"804","DOI":"10.1258\/0956462001915327","volume":"11","author":"K Fonck","year":"2000","unstructured":"Fonck K, Kaul R, Kimani J, et al. A randomized, placebo-controlled trial of monthly azithromycin prophylaxis to prevent sexually transmitted infections and HIV-1 in Kenyan sex workers: study design and baseline findings. Int J STD AIDS. 2000;11(12):804\u201311.","journal-title":"Int J STD AIDS"},{"issue":"1","key":"722_CR75","doi-asserted-by":"publisher","first-page":"44","DOI":"10.1097\/00007435-200201000-00008","volume":"29","author":"G Ramjee","year":"2002","unstructured":"Ramjee G, Gouws E. Prevalence of HIV among truck drivers visiting sex workers in KwaZulu-Natal, South Africa. Sex Transm Dis. 2002;29(1):44\u20139.","journal-title":"Sex Transm Dis"},{"issue":"9338","key":"722_CR76","doi-asserted-by":"publisher","first-page":"971","DOI":"10.1016\/S0140-6736(02)11079-8","volume":"360","author":"L Van Damme","year":"2002","unstructured":"Van Damme L, Ramjee G, Alary M, Vuylsteke B, Chandeying V, Rees H, Sirivongrangson P, Mukenge-Tshibaka L, Etti\u00e8gne-Traor\u00e9 V, Uaheowitchai C, et al. Effectiveness of COL-1492, a nonoxynol-9 vaginal gel, on HIV-1 transmission in female sex workers: a randomised controlled trial. Lancet. 2002;360(9338):971\u20137.","journal-title":"Lancet"},{"issue":"6","key":"722_CR77","doi-asserted-by":"publisher","first-page":"681","DOI":"10.1080\/09540120410331269530","volume":"16","author":"SC Kalichman","year":"2004","unstructured":"Kalichman SC, Simbayi LC. Sexual assault history and risks for sexually transmitted infections among women in an African township in Cape Town, South Africa. AIDS Care. 2004;16(6):681\u20139.","journal-title":"AIDS Care"},{"issue":"4","key":"722_CR78","doi-asserted-by":"publisher","first-page":"399","DOI":"10.1007\/s10461-005-9037-7","volume":"10","author":"E Mpofu","year":"2006","unstructured":"Mpofu E, Flisher AJ, Bility K, Onya H, Lombard C. Sexual partners in a rural south African setting. AIDS Behav. 2006;10(4):399\u2013404.","journal-title":"AIDS Behav"},{"issue":"5","key":"722_CR79","doi-asserted-by":"publisher","first-page":"392","DOI":"10.1136\/sti.2006.019794","volume":"82","author":"M Schwandt","year":"2006","unstructured":"Schwandt M, Morris C, Ferguson A, Ngugi E, Moses S. Anal and dry sex in commercial sex work, and relation to risk for sexually transmitted infections and HIV in Meru, Kenya. Sex Transm Infect. 2006;82(5):392\u20136.","journal-title":"Sex Transm Infect"},{"issue":"2","key":"722_CR80","doi-asserted-by":"publisher","first-page":"353","DOI":"10.1016\/j.adolescence.2006.11.002","volume":"30","author":"HB Jaspan","year":"2007","unstructured":"Jaspan HB, Flisher AJ, Myer L, Mathews C, Seebregts C, Berwick JR, Wood R, Bekker LG. Brief report: methods for collecting sexual behaviour information from south African adolescents--a comparison of paper versus personal digital assistant questionnaires. J Adolesc. 2007;30(2):353\u20139.","journal-title":"J Adolesc"},{"issue":"6","key":"722_CR81","doi-asserted-by":"publisher","first-page":"490","DOI":"10.1136\/sti.2007.024810","volume":"83","author":"CF Allen","year":"2007","unstructured":"Allen CF, Lees SS, Desmond NA, et al. Validity of coital diaries in a feasibility study for the Microbicides Development Programme trial among women at high risk of HIV\/AIDS in Mwanza, Tanzania. Sex Transm Infect. 2007;83(6):490\u20136.","journal-title":"Sex Transm Infect"},{"issue":"5","key":"722_CR82","doi-asserted-by":"publisher","first-page":"631","DOI":"10.1097\/QAI.0b013e31815b2d9c","volume":"46","author":"D Watson-Jones","year":"2007","unstructured":"Watson-Jones D, Weiss H, Rusizoka M, Baisley K, Mugeye K, Changalucha J, Everett D, Balira R, Knight L, Ross D, Hayes RJ. Risk factors for herpes simplex virus type 2 and HIV among women at high risk in northwestern Tanzania: preparing for an HSV-2 intervention trial. J Acquir Immune Defic Syndr. 2007;46(5):631\u201342.","journal-title":"J Acquir Immune Defic Syndr"},{"issue":"5","key":"722_CR83","doi-asserted-by":"publisher","first-page":"364","DOI":"10.1136\/sti.2007.028852","volume":"84","author":"ML Grijsen","year":"2008","unstructured":"Grijsen ML, Graham SM, Mwangome M, et al. Screening for genital and anorectal sexually transmitted infections in HIV prevention trials in Africa. Sex Transm Infect. 2008;84(5):364\u201370.","journal-title":"Sex Transm Infect"},{"issue":"6","key":"722_CR84","doi-asserted-by":"publisher","first-page":"411","DOI":"10.1136\/sti.2008.035287","volume":"85","author":"SC Kalichman","year":"2009","unstructured":"Kalichman SC, Simbayi LC, Cain D, Jooste S. Heterosexual anal intercourse among community and clinical settings in Cape Town, South Africa. Sex Transm Infect. 2009;85(6):411\u20135.","journal-title":"Sex Transm Infect"},{"issue":"5996","key":"722_CR85","doi-asserted-by":"publisher","first-page":"1168","DOI":"10.1126\/science.1193748","volume":"329","author":"Q Abdool Karim","year":"2010","unstructured":"Abdool Karim Q, Abdool Karim SS, Frohlich JA, Grobler AC, Baxter C, Mansoor LE, Kharsany AB, Sibeko S, Mlisana KP, Omar Z, et al. Effectiveness and safety of tenofovir gel, an antiretroviral microbicide, for the prevention of HIV infection in women. Science. 2010;329(5996):1168\u201374.","journal-title":"Science"},{"issue":"4","key":"722_CR86","doi-asserted-by":"publisher","first-page":"922","DOI":"10.1093\/ije\/dyq176","volume":"40","author":"QA Karim","year":"2011","unstructured":"Karim QA, Kharsany AB, Frohlich JA, Werner L, Mashego M, Mlotshwa M, Madlala BT, Ntombela F, Abdool Karim SS. Stabilizing HIV prevalence masks high HIV incidence rates amongst rural and urban women in KwaZulu-Natal, South Africa. Int J Epidemiol. 2011;40(4):922\u201330.","journal-title":"Int J Epidemiol"},{"key":"722_CR87","doi-asserted-by":"publisher","first-page":"807","DOI":"10.1186\/1471-2458-11-807","volume":"11","author":"SC Kalichman","year":"2011","unstructured":"Kalichman SC, Pinkerton SD, Carey MP, et al. Heterosexual anal intercourse and HIV infection risks in the context of alcohol serving venues, Cape Town, South Africa. BMC Public Health. 2011;11:807.","journal-title":"BMC Public Health"},{"issue":"2","key":"722_CR88","doi-asserted-by":"publisher","first-page":"407","DOI":"10.1007\/s10461-010-9791-z","volume":"15","author":"BSHP Mensch","year":"2011","unstructured":"Mensch BSHP, Abbott S, Rankin J, Littlefield S, Ahmed K, Cassim N, Patel SRG, Palanee T, Mierzwa S, Skoler-Karpoff S. Assessing the reporting of adherence and sexual activity in a simulated microbicide trial in South Africa: an interview mode experiment using a placebo gel. AIDS Behav. 2011;15(2):407\u201321.","journal-title":"AIDS Behav"},{"issue":"10","key":"722_CR89","doi-asserted-by":"publisher","first-page":"1067","DOI":"10.1089\/aid.2010.0362","volume":"27","author":"FH Priddy","year":"2011","unstructured":"Priddy FH, Wakasiaka S, Hoang TD, et al. Anal sex, vaginal practices, and HIV incidence in female sex workers in urban Kenya: implications for the development of intravaginal HIV prevention methods. AIDS Res Hum Retrovir. 2011;27(10):1067\u201372.","journal-title":"AIDS Res Hum Retrovir"},{"issue":"2","key":"722_CR90","doi-asserted-by":"publisher","first-page":"251","DOI":"10.1071\/SH10047","volume":"8","author":"NJ Veldhuijzen","year":"2011","unstructured":"Veldhuijzen NJ, Ingabire C, Luchters S, Bosire W, Braunstein S, Chersich M, van de Wijgert J. Anal intercourse among female sex workers in East Africa is associated with other high-risk behaviours for HIV. Sex Health. 2011;8(2):251\u20134.","journal-title":"Sex Health"},{"issue":"5","key":"722_CR91","doi-asserted-by":"publisher","first-page":"435","DOI":"10.1097\/QAI.0b013e318220379b","volume":"57","author":"KK Venkatesh","year":"2011","unstructured":"Venkatesh KK, de Bruyn G, Mayer KH, et al. Changes in sexual risk behavior before and after HIV seroconversion in southern African women enrolled in a HIV prevention trial. J Acquir Immune Defic Syndr. 2011;57(5):435\u201341.","journal-title":"J Acquir Immune Defic Syndr"},{"issue":"2","key":"722_CR92","doi-asserted-by":"publisher","first-page":"627","DOI":"10.1007\/s11121-012-0290-5","volume":"13","author":"D Cain","year":"2012","unstructured":"Cain D, Pare V, Kalichman SC, Harel O, Mthembu J, Carey MP, Carey KB, Mehlomakulu V, Simbayi LC, Mwaba K. HIV risks associated with patronizing alcohol serving establishments in South African townships, Cape Town. Prev Sci. 2012;13(2):627\u201334.","journal-title":"Prev Sci"},{"issue":"4","key":"722_CR93","doi-asserted-by":"publisher","first-page":"195","DOI":"10.2989\/16085906.2013.863219","volume":"12","author":"LA Scott-Sheldon","year":"2013","unstructured":"Scott-Sheldon LA, Carey MP, Carey KB, et al. HIV testing is associated with increased knowledge and reductions in sexual risk behaviours among men in Cape Town, South Africa. Afr J AIDS Res. 2013;12(4):195\u2013201.","journal-title":"Afr J AIDS Res"},{"issue":"16","key":"722_CR94","doi-asserted-by":"publisher","first-page":"2089","DOI":"10.1016\/j.vaccine.2013.01.031","volume":"31","author":"GE Gray","year":"2013","unstructured":"Gray GE, Metch B, Churchyard G, Mlisana K, Nchabeleng M, Allen M, Moodie Z, Kublin J, Bekker LG, HVTN 503 team. Does participation in an HIV vaccine efficacy trial affect risk behaviour in South Africa? Vaccine. 2013;31(16):2089\u201396.","journal-title":"Vaccine"},{"issue":"3","key":"722_CR95","doi-asserted-by":"publisher","first-page":"467","DOI":"10.2105\/AJPH.2013.301578","volume":"104","author":"JB Jemmott 3rd","year":"2014","unstructured":"Jemmott JB, 3rd, , Jemmott LS, O\u2019Leary A, Ngwane Z, Icard LD, Heeren GA, Mtose X, Carty C: Cluster-randomized controlled trial of an HIV\/sexually transmitted infection risk-reduction intervention for south African men. Am J Public Health 2014, 104(3):467\u2013473.","journal-title":"Am J Public Health"},{"issue":"5","key":"722_CR96","doi-asserted-by":"publisher","first-page":"363","DOI":"10.1136\/sextrans-2014-051537","volume":"90","author":"MB Guffey","year":"2014","unstructured":"Guffey MB, Richardson B, Husnik M, Makanani B, Chilongozi D, Yu E, Ramjee G, Mgodi N, Gomez K, Hillier SL, et al. HPTN 035 phase II\/IIb randomised safety and effectiveness study of the vaginal microbicides BufferGel and 0.5% PRO 2000 for the prevention of sexually transmitted infections in women. Sex Transm Infect. 2014;90(5):363\u20139.","journal-title":"Sex Transm Infect"},{"issue":"7","key":"722_CR97","doi-asserted-by":"publisher","first-page":"1265","DOI":"10.2105\/AJPH.2013.301865","volume":"104","author":"IB Thurston","year":"2014","unstructured":"Thurston IB, Dietrich J, Bogart LM, Otwombe KN, Sikkema KJ, Nkala B, Gray GE. Correlates of sexual risk among sexual minority and heterosexual south African youths. Am J Public Health. 2014;104(7):1265\u20139.","journal-title":"Am J Public Health"},{"issue":"7","key":"722_CR98","doi-asserted-by":"publisher","first-page":"e279","DOI":"10.1016\/S2352-3018(15)00058-2","volume":"2","author":"LM Noguchi","year":"2015","unstructured":"Noguchi LM, Richardson BA, Baeten JM, Hillier SL, Balkus JE, Chirenje ZM, Bunge K, Ramjee G, Nair G, Palanee-Phillips T, et al. Risk of HIV-1 acquisition among women who use diff erent types of injectable progestin contraception in South Africa: a prospective cohort study. Lancet HIV. 2015;2(7):e279\u201387.","journal-title":"Lancet HIV"},{"issue":"6","key":"722_CR99","doi-asserted-by":"publisher","first-page":"e0128857","DOI":"10.1371\/journal.pone.0128857","volume":"10","author":"T Palanee-Phillips","year":"2015","unstructured":"Palanee-Phillips T, Schwartz K, Brown ER, Govender V, Mgodi N, Kiweewa FM, Nair G, Mhlanga F, Siva S, Bekker LG, et al. Characteristics of women enrolled into a randomized clinical trial of Dapivirine vaginal ring for HIV-1 prevention. PLoS One. 2015;10(6):e0128857.","journal-title":"PLoS One"},{"issue":"10","key":"722_CR100","doi-asserted-by":"publisher","first-page":"1189","DOI":"10.1080\/09540120701408134","volume":"19","author":"JJ Stadler","year":"2007","unstructured":"Stadler JJ, Delany S, Mntambo M. Sexual coercion and sexual desire: ambivalent meanings of heterosexual anal sex in Soweto, South Africa. AIDS Care. 2007;19(10):1189\u201393.","journal-title":"AIDS Care"},{"issue":"2","key":"722_CR101","doi-asserted-by":"publisher","first-page":"205","DOI":"10.1080\/13691050600988416","volume":"10","author":"C Ndinda","year":"2008","unstructured":"Ndinda C, Chimbwete C, McGrath N, Pool R. Perceptions of anal sex in rural South Africa. Cult Health Sex. 2008;10(2):205\u201312.","journal-title":"Cult Health Sex"},{"issue":"8","key":"722_CR102","doi-asserted-by":"publisher","first-page":"863","DOI":"10.1080\/00224499.2013.871624","volume":"51","author":"Z Duby","year":"2014","unstructured":"Duby Z, Colvin C. Conceptualizations of heterosexual anal sex and HIV risk in five east African communities. J Sex Res. 2014;51(8):863\u201373.","journal-title":"J Sex Res"},{"issue":"2","key":"722_CR103","doi-asserted-by":"publisher","first-page":"165","DOI":"10.1080\/13691058.2014.961034","volume":"17","author":"SW Beckham","year":"2015","unstructured":"Beckham SW, Shembilu CR, Winch PJ, Beyrer C, Kerrigan DL. \u2018If you have children, you have responsibilities\u2019: motherhood, sex work and HIV in southern Tanzania. Cult Health Sex. 2015;17(2):165\u201379.","journal-title":"Cult Health Sex"},{"key":"722_CR104","doi-asserted-by":"publisher","first-page":"417","DOI":"10.1186\/s12889-015-1768-4","volume":"15","author":"J Wamoyi","year":"2015","unstructured":"Wamoyi J, Mongi A, Sally M, Kakoko D, Shamba D, Geubbels E, Kapiga S. A qualitative study of discourses on heterosexual anal sexual practice among key, and general populations in Tanzania: implications for HIV prevention. BMC Public Health. 2015;15:417.","journal-title":"BMC Public Health"},{"issue":"1\u20132","key":"722_CR105","first-page":"25","volume":"5","author":"MN Katsivo","year":"1991","unstructured":"Katsivo MN, Muthami LN. Social characteristics and sexual behaviour of women at high risk of HIV infection in a town in Central Province of Kenya. Arch AIDS Res. 1991;5(1\u20132):25\u20137.","journal-title":"Arch AIDS Res"},{"issue":"8","key":"722_CR106","doi-asserted-by":"publisher","first-page":"1265","DOI":"10.2105\/AJPH.88.8.1265-a","volume":"88","author":"SSA Karim","year":"1998","unstructured":"Karim SSA, Ramjee G. Anal sex and HIV transmission in women. Am J Public Health. 1998;88(8):1265\u20136.","journal-title":"Am J Public Health"},{"issue":"3","key":"722_CR107","doi-asserted-by":"publisher","first-page":"384","DOI":"10.1007\/s10461-008-9368-2","volume":"12","author":"EG Bing","year":"2008","unstructured":"Bing EG, Cheng KG, Ortiz DJ, Ovalle-Bahamon RE, Ernesto F, Weiss RE, Boyer CB. Evaluation of a prevention intervention to reduce HIV risk among Angolan soldiers. AIDS Behav. 2008;12(3):384\u201395.","journal-title":"AIDS Behav"},{"issue":"7","key":"722_CR108","doi-asserted-by":"publisher","first-page":"539","DOI":"10.3855\/jidc.472","volume":"3","author":"MP Adoga","year":"2009","unstructured":"Adoga MP, Banwat EB, Forbi JC, Nimzing L, Pam CR, Gyar SD, Agabi YA, Agwale SM. Human immunodeficiency virus, hepatitis B virus and hepatitis C virus: sero-prevalence, co-infection and risk factors among prison inmates in Nasarawa state, Nigeria. J Infect Dev Ctries. 2009;3(7):539\u201347.","journal-title":"J Infect Dev Ctries"},{"issue":"5","key":"722_CR109","doi-asserted-by":"publisher","first-page":"e5340","DOI":"10.1371\/journal.pone.0005340","volume":"4","author":"EM van der Elst","year":"2009","unstructured":"van der Elst EM, Okuku HS, Nakamya P, Muhaari A, Davies A, McClelland RS, Price MA, Smith AD, Graham SM, Sanders EJ. Is audio computer-assisted self-interview (ACASI) useful in risk behaviour assessment of female and male sex workers, Mombasa, Kenya? PloS One. 2009;4(5):e5340.","journal-title":"PloS One"},{"key":"722_CR110","first-page":"24","volume":"2","author":"EN Essomba","year":"2013","unstructured":"Essomba EN, Kollo B, Kouoh Ngambi M, Owona Manga LJ, Mbunya S, Bita Fouda A, Dissongo JI, Mikendeffo D, Lehman L. Sex risk behaviour and prevalence of HIV of sex workers in Douala at 2011. Mali Med. 2013;2:24\u20138.","journal-title":"Mali Med"},{"issue":"6","key":"722_CR111","doi-asserted-by":"publisher","first-page":"e67062","DOI":"10.1371\/journal.pone.0067062","volume":"8","author":"BH Lambdin","year":"2013","unstructured":"Lambdin BH, Bruce RD, Chang O, Nyandindi C, Sabuni N, Zamudio-Haas S, McCurdy S, Masao F, Ivo Y, Msami A, et al. Identifying programmatic gaps: inequities in harm reduction service utilization among male and female drug users in Dar es Salaam, Tanzania. PLoS One. 2013;8(6):e67062.","journal-title":"PLoS One"},{"issue":"Suppl. 1","key":"722_CR112","doi-asserted-by":"publisher","first-page":"S46","DOI":"10.1097\/QAI.0000000000000137","volume":"66","author":"G Githuka","year":"2014","unstructured":"Githuka G, Hladik W, Mwalili S, Cherutich P, Muthui M, Gitonga J, Maina WK, Kim AA. Populations at increased risk for HIV infection in Kenya: results from a national population-based household survey, 2012. (special issue: Kenya AIDS Indicator survey 2012.). J Acquir Immune Defic Syndr. 2014;66(Suppl. 1):S46\u201356.","journal-title":"J Acquir Immune Defic Syndr"},{"key":"722_CR113","doi-asserted-by":"publisher","unstructured":"Anyanwu PE, Fulton J. Knowledge and perception of young adults in Nigeria on effectiveness of condom use in prevention of sexually transmitted infections. Int J Adolesc Med Health. 2015. \n                    https:\/\/doi.org\/10.1515\/ijamh-2015-0050\n                    \n                  .","DOI":"10.1515\/ijamh-2015-0050"},{"key":"722_CR114","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1177\/0956462416650817","volume":"0","author":"HN Luma","year":"2016","unstructured":"Luma HN, Eloumou SAFB, Atemlefeh FE, Malongue A, Temfack E, Lekpa FK, Donfack-Sontsa O, Ndip L, Ditah IC. Anorectal pathology amongst HIV infected patients attending the Douala General Hospital: a cross-sectional study. Int J STD AIDS. 2016;0:1\u20138. \n                    https:\/\/doi.org\/10.1177\/0956462416650817\n                    \n                  .","journal-title":"Int J STD AIDS"},{"key":"722_CR115","doi-asserted-by":"publisher","first-page":"1","DOI":"10.7243\/2054-9865-3-1","volume":"3","author":"E McLellan-Lemal","year":"2016","unstructured":"McLellan-Lemal E, Gust DA, Gvetadze R, Furtado M, Otieno FO, Desai M, Zeh C, Samandari T, Nyagol B, Makanga EM. Characteristics of women screened for a contraceptive intravaginal ring study in Kisumu, Kenya, 2014. Res J Womens Health. 2016;3:1\u201323.","journal-title":"Res J Womens Health"},{"issue":"2","key":"722_CR116","doi-asserted-by":"publisher","first-page":"539","DOI":"10.1007\/s10508-016-0818-z","volume":"46","author":"Chloe A. Teasdale","year":"2016","unstructured":"Teasdale CA, Abrams EJ, Chiasson M, Justman J, Blanchard AK, Jones HE. Sexual risk and intravaginal practice behavior changes during pregnancy. Arch Sex Behav. 2016. \n                    https:\/\/doi.org\/10.1007\/s10508-016-0818-z\n                    \n                  .","journal-title":"Archives of Sexual Behavior"},{"issue":"4","key":"722_CR117","doi-asserted-by":"publisher","first-page":"883","DOI":"10.1007\/s10903-016-0514-z","volume":"19","author":"M Giorgio","year":"2017","unstructured":"Giorgio M, Townsend L, Zembe Y, Cheyip M, Guttmacher S, Kapadia F, Mathews C. The relationship between social support, HIV Serostatus, and perceived likelihood of being HIV positive among self-settled female, foreign migrants in Cape Town, South Africa. J Immigr Minor Health. 2017;19(4):883\u201390.","journal-title":"J Immigr Minor Health"},{"issue":"1","key":"722_CR118","doi-asserted-by":"publisher","first-page":"565","DOI":"10.1186\/s12889-017-4428-z","volume":"17","author":"W Hladik","year":"2017","unstructured":"Hladik W, Baughman AL, Serwadda D, Tappero JW, Kwezi R, Nakato ND, Barker J. Burden and characteristics of HIV infection among female sex workers in Kampala, Uganda - a respondent-driven sampling survey. BMC Public Health. 2017;17(1):565.","journal-title":"BMC Public Health"},{"issue":"11","key":"722_CR119","doi-asserted-by":"publisher","first-page":"e0187654","DOI":"10.1371\/journal.pone.0187654","volume":"12","author":"JD Longo","year":"2017","unstructured":"Longo JD, Simaleko MM, Diemer HS, Gresenguet G, Brucker G, Belec L. Risk factors for HIV infection among female sex workers in Bangui, Central African Republic. PLoS One. 2017;12(11):e0187654.","journal-title":"PLoS One"},{"key":"722_CR120","doi-asserted-by":"publisher","first-page":"140","DOI":"10.1186\/s13104-017-2452-9","volume":"10","author":"EH Shayo","year":"2017","unstructured":"Shayo EH, Kalinga AA, Senkoro KP, Msovela J, Mgina EJ, Shija AE, Materu G, Kilima SP, Mboera LEG, Massaga JJ. Prevalence and risk factors associated with female anal sex in the context of HIV\/AIDS in the selected districts of Tanzania. BMC Res Notes. 2017;10:140.","journal-title":"BMC Res Notes"},{"issue":"2","key":"722_CR121","doi-asserted-by":"publisher","first-page":"287","DOI":"10.1093\/aje\/kwx244","volume":"187","author":"M Maheu-Giroux","year":"2018","unstructured":"Maheu-Giroux M, Baral S, Vesga JF, Diouf D, Diabate S, Alary M, Abo K, Boily MC. Anal intercourse among female sex Workers in Cote d'Ivoire: prevalence, determinants, and model-based estimates of the population-level impact on HIV transmission. Am J Epidemiol. 2018;187(2):287\u201397.","journal-title":"Am J Epidemiol"},{"issue":"6","key":"722_CR122","doi-asserted-by":"publisher","first-page":"573","DOI":"10.1080\/13691050801999071","volume":"10","author":"W Mavhu","year":"2008","unstructured":"Mavhu W, Langhaug L, Manyonga B, Power R, Cowan F. What is \u2018sex\u2019 exactly? Using cognitive interviewing to improve the validity of sexual behaviour reporting among young people in rural Zimbabwe. Cult Health Sex. 2008;10(6):573\u201385. \n                    https:\/\/doi.org\/10.1080\/13691050801999071\n                    \n                  .","journal-title":"Cult Health Sex"},{"issue":"1","key":"722_CR123","doi-asserted-by":"publisher","first-page":"30","DOI":"10.1080\/13691058.2015.1064165","volume":"18","author":"Z Duby","year":"2016","unstructured":"Duby Z, Hartmann M, Montgomery ET, Colvin CJ, Mensch B, Straten A. Sexual scripting of heterosexual penile-anal intercourse amongst participants in an HIV prevention trial in South Africa, Uganda and Zimbabwe. Cult Health Sex. 2016;18(1):30\u201344.","journal-title":"Cult Health Sex"},{"issue":"8","key":"722_CR124","doi-asserted-by":"publisher","first-page":"576","DOI":"10.1136\/sextrans-2015-052055","volume":"91","author":"S Mtenga","year":"2015","unstructured":"Mtenga S, Shamba D, Wamoyi J, Kakoko D, Haafkens J, Mongi A, Kapiga S, Geubbels E. How long-distance truck drivers and villagers in rural southeastern Tanzania think about heterosexual anal sex: a qualitative study. Sex Transm Infect. 2015;91(8):576\u201380.","journal-title":"Sex Transm Infect"},{"key":"722_CR125","doi-asserted-by":"publisher","first-page":"27","DOI":"10.1186\/s41256-41017-40047-41256","volume":"2","author":"YT Mazeingia","year":"2017","unstructured":"Mazeingia YT, Olijjira L, Dessie Y. Anal sexual experience and HIV risk awareness among female sex workers in Dire Dawa, eastern Ethiopia. Glob Health Res Policy. 2017;2:27. \n                    https:\/\/doi.org\/10.1186\/s41256-41017-40047-41256\n                    \n                  .","journal-title":"Glob Health Res Policy"},{"issue":"9","key":"722_CR126","first-page":"528","volume":"75","author":"A Tengia-Kessy","year":"1998","unstructured":"Tengia-Kessy A, Msamanga GI, Moshiro CS. Assessment of behavioural risk factors associated with HIV infection among youth in Moshi rural district, Tanzania. East Afr Med J. 1998;75(9):528\u201332.","journal-title":"East Afr Med J"},{"issue":"3","key":"722_CR127","first-page":"165","volume":"18","author":"OI Fawole","year":"1999","unstructured":"Fawole OI, Ajayi IO, Babalola TD, Oni AA, Asuzu MC. Socio-demographic characteristics and sexual behaviour of adolescents attending the STC, UCH, Ibadan: a 5 year review. West Afr J Med. 1999;18(3):165\u20139.","journal-title":"West Afr J Med"},{"issue":"3","key":"722_CR128","first-page":"195","volume":"19","author":"AO Okesola","year":"2000","unstructured":"Okesola AO, Fawole OI. Prevalence of human papilloma virus genital infections in sexually transmitted diseases clinic attendees in Ibadan. West Afr J Med. 2000;19(3):195\u20139.","journal-title":"West Afr J Med"},{"key":"722_CR129","doi-asserted-by":"publisher","first-page":"303","DOI":"10.3389\/fonc.2013.00303","volume":"3","author":"SL Vogt","year":"2013","unstructured":"Vogt SL, Gravitt PE, Martinson NA, Hoffmann J, D\u2019Souza G. Concordant Oral-genital HPV infection in South Africa couples: evidence for transmission. Front Oncol. 2013;3:303.","journal-title":"Front Oncol"},{"issue":"5","key":"722_CR130","doi-asserted-by":"publisher","first-page":"358","DOI":"10.7196\/SAMJ.7542","volume":"104","author":"CL Davidson","year":"2014","unstructured":"Davidson CL, Richter KL, Van der Linde M, Coetsee J, Boy SC. Prevalence of oral and oropharyngeal human papillomavirus in a sample of south African men: a pilot study. S Afr Med J. 2014;104(5):358\u201361.","journal-title":"S Afr Med J"},{"issue":"1","key":"722_CR131","doi-asserted-by":"publisher","first-page":"66","DOI":"10.1080\/19317611.2013.830671","volume":"26","author":"JT Kerwin","year":"2014","unstructured":"Kerwin JT, Thornton RL, Foley SL. Prevalence of and factors associated with oral sex among rural and urban Malawian men. Int J Sexual Health. 2014;26(1):66\u201377.","journal-title":"Int J Sexual Health"},{"issue":"2","key":"722_CR132","doi-asserted-by":"publisher","first-page":"e89705","DOI":"10.1371\/journal.pone.0089705","volume":"9","author":"I Meque","year":"2014","unstructured":"Meque I, Dube K, Feldblum PJ, Clements AC, Zango A, Cumbe F, Chen PL, Ferro JJ, van de Wijgert JH. Prevalence, incidence and determinants of herpes simplex virus type 2 infection among HIV-seronegative women at high-risk of HIV infection: a prospective study in Beira, Mozambique. PloS One. 2014;9(2):e89705.","journal-title":"PloS One"},{"issue":"1","key":"722_CR133","first-page":"17","volume":"1","author":"LW Gathece","year":"2000","unstructured":"Gathece LW. Prevalence of oral sex and wet kissing among female sex workers in two areas of Nairobi, Kenya. Afr J Oral Health Sci. 2000;1(1):17\u20138.","journal-title":"Afr J Oral Health Sci"},{"key":"722_CR134","doi-asserted-by":"publisher","first-page":"185","DOI":"10.1016\/j.jinf.2013.10.012","volume":"68","author":"ZZA Mbulawa","year":"2014","unstructured":"Mbulawa ZZA, Johnson LF, Marais DJ, Coetzee D, Williamson AL. Risk factors for oral human papillomavirus in heterosexual couples in an African setting. J Infect. 2014;68:185\u20139.","journal-title":"J Infect"},{"issue":"6","key":"722_CR135","doi-asserted-by":"publisher","first-page":"09","DOI":"10.1515\/ijamh-2016-0021","volume":"29","author":"VJ Animasahun","year":"2016","unstructured":"Animasahun VJ, Sholeye OO, Oduwole AD. Promoting the sexual and reproductive health of adolescent females in Ijebu-Ode, southwest, Nigeria: a study of sexual risk-taking. Int J Adolesc Med Health. 2016;29(6):09.","journal-title":"Int J Adolesc Med Health"},{"key":"722_CR136","doi-asserted-by":"publisher","first-page":"261","DOI":"10.11604\/pamj.2016.25.261.2630","volume":"25","author":"OS Arulogun","year":"2016","unstructured":"Arulogun OS, Ogbu IA, Dipeolu IO. Influence of internet exposure on sexual behaviour of young persons in an urban district of Southwest Nigeria. Pan Afr Med J. 2016;25:261.","journal-title":"Pan Afr Med J"},{"issue":"8","key":"722_CR137","doi-asserted-by":"publisher","first-page":"776","DOI":"10.1177\/0956462418755882","volume":"29","author":"A Chikandiwa","year":"2018","unstructured":"Chikandiwa A, Pisa PT, Chersich MF, Muller EE, Mayaud P, Delany-Moretlwe S. Oropharyngeal HPV infection: prevalence and sampling methods among HIV-infected men in South Africa. Int J STD AIDS. 2018;29(8):776\u201380.","journal-title":"Int J STD AIDS"},{"issue":"3","key":"722_CR138","doi-asserted-by":"publisher","first-page":"275","DOI":"10.1001\/jama.281.3.275","volume":"281","author":"SA Sanders","year":"1999","unstructured":"Sanders SA, Reinisch JM. Would you say you \u201chad sex\u201d if...? JAMA. 1999;281(3):275\u20137.","journal-title":"JAMA"},{"issue":"1","key":"722_CR139","doi-asserted-by":"publisher","first-page":"31","DOI":"10.1071\/SH09068","volume":"7","author":"SA Sanders","year":"2010","unstructured":"Sanders SA, Hill BJ, Yarber WL, Graham CA, Crosby RA, Milhausen RR. Misclassification bias: diversity in conceptualisations about having \u2018had sex\u2019. Sex Health. 2010;7(1):31\u20134.","journal-title":"Sex Health"},{"issue":"1","key":"722_CR140","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1111\/j.1708-8305.2010.00453.x","volume":"18","author":"William C.W. Wong","year":"2011","unstructured":"Wong WCW, Lin Yim Y, Lynn H. Sexually Transmitted Infections Among Female Sex Workers in Hong Kong: The Role of Migration Status, J Travel Med. 2011;18(1):1\u20137. \n                    https:\/\/doi.org\/10.1111\/j.1708-8305.2010.00453.x","journal-title":"Journal of Travel Medicine"},{"key":"722_CR141","doi-asserted-by":"publisher","first-page":"777","DOI":"10.1186\/s12889-015-2132-4","volume":"15","author":"RB Lim","year":"2015","unstructured":"Lim RB, Wong ML, Tan PH, Govender M. Heterosexual men who patronise entertainment establishments versus brothels in an Asian urban setting \u2013 which group practises riskier sexual behaviours? BMC Public Health. 2015;15:777.","journal-title":"BMC Public Health"},{"key":"722_CR142","unstructured":"World Health Organisation. Alcohol use and sexual risk behaviour: a cross-cultural study in eight countries. 2005. Available from: \n                    https:\/\/www.who.int\/substance_abuse\/publications\/alcohol_sexual_risk_crosscultural.pdf\n                    \n                  . Accessed 3 May 2019."},{"issue":"6","key":"722_CR143","first-page":"746","volume":"38","author":"YX Mao","year":"2017","unstructured":"Mao YX, Xiao CC, Wang T, Li SY, Yan H. One-night-stand behavior and associated factors among young men who have sex with men in Wuhan, China. Zhonghua Liu Xing Bing Xue Za Zhi. 2017;38(6):746\u20139.","journal-title":"Zhonghua Liu Xing Bing Xue Za Zhi"},{"issue":"7","key":"722_CR144","doi-asserted-by":"publisher","first-page":"2450","DOI":"10.1007\/s10461-012-0387-7","volume":"17","author":"DA Calsyn","year":"2013","unstructured":"Calsyn DA, Hatch-Maillette MA, Meade CS, Tross S, Campbell AN, Beadnell B. Gender differences in heterosexual anal sex practices among women and men in substance abuse treatment. AIDS Behav. 2013;17(7):2450\u20138.","journal-title":"AIDS Behav"},{"issue":"3","key":"722_CR145","doi-asserted-by":"publisher","first-page":"378","DOI":"10.1080\/09540121.2012.701726","volume":"25","author":"TS Beattie","year":"2013","unstructured":"Beattie TS, Bradley JE, Vanta UD, Lowndes CM, Alary M. Vulnerability re-assessed: the changing face of sex work in Guntur district, Andhra Pradesh. AIDS Care. 2013;25(3):378\u201384.","journal-title":"AIDS Care"},{"issue":"6","key":"722_CR146","doi-asserted-by":"publisher","first-page":"694","DOI":"10.1016\/j.jadohealth.2017.07.004","volume":"61","author":"R Lewis","year":"2017","unstructured":"Lewis R, Tanton C, Mercer CH, Mitchell KR, Palmer M, Macdowall W, Wellings K. Heterosexual practices among young people in Britain: evidence from three national surveys of sexual attitudes and lifestyles. J Adolesc Health. 2017;61(6):694\u2013702.","journal-title":"J Adolesc Health"},{"issue":"2","key":"722_CR147","doi-asserted-by":"crossref","first-page":"169","DOI":"10.1515\/ijamh-2015-0003","volume":"28","author":"D Pizzol","year":"2016","unstructured":"Pizzol D, Bertoldo A, Foresta C. Adolescents and web porn: a new era of sexuality. Int J Adolesc Med Health. 2016;28(2):169\u201373.","journal-title":"Int J Adolesc Med Health"},{"issue":"6","key":"722_CR148","doi-asserted-by":"publisher","first-page":"501","DOI":"10.1071\/SH16037","volume":"13","author":"Lucy Watchirs Smith","year":"2016","unstructured":"Smith LW, Liu B, Degenhardt L, Richters J, Patton G, Wand H, Cross D, Hocking JS, Skinner SR, Cooper S, Lumby C, Kaldor JM, Guy R. Is sexual content in new media linked to sexual risk behaviour in young people? A systematic review and meta-analysis. Sex Health. 2016. \n                    https:\/\/doi.org\/10.1071\/SH16037\n                    \n                   [Epub ahead of print].","journal-title":"Sexual Health"},{"key":"722_CR149","doi-asserted-by":"publisher","first-page":"438","DOI":"10.1111\/1753-6405.12678","volume":"41","author":"MSC Lim","year":"2017","unstructured":"Lim MSC, Agius PA, Carrotte ER, Vella AM, Hellard ME. Young Australians\u2019 use of pornography and associations with sexual risk behaviours. Aust NZ J Public Health. 2017;41:438\u201343.","journal-title":"Aust NZ J Public Health"},{"key":"722_CR150","unstructured":"Centers for Disease Control and Prevention. Sexually transmitted diseases treatment guidelines. 2015. Available from: \n                    https:\/\/www.cdc.gov\/std\/tg2015\/default.htm\n                    \n                  . Accessed 20 Nov 2018."},{"key":"722_CR151","doi-asserted-by":"publisher","first-page":"533","DOI":"10.1186\/s12879-015-1280-6","volume":"15","author":"NH Dukers-Muijrers","year":"2015","unstructured":"Dukers-Muijrers NH, Schachter J, van Liere GA, Wolffs PF, Hoebe CJ. What is needed to guide testing for anorectal and pharyngeal Chlamydia trachomatis and Neisseria gonorrhoeae in women and men? Evidence and opinion. BMC Infect Dis. 2015;15:533.","journal-title":"BMC Infect Dis"},{"issue":"2","key":"722_CR152","first-page":"22","volume":"80","author":"SL Curtis","year":"2004","unstructured":"Curtis SL, Sutherland EG. Measuring sexual behaviour in the era of HIV\/AIDS: the experience of demographic and health surveys and similar enquiries. Sex Transm Infect. 2004;80(2):22\u20137.","journal-title":"Sex Transm Infect"},{"issue":"2","key":"722_CR153","first-page":"45","volume":"80","author":"M Plummer","year":"2004","unstructured":"Plummer M, Ross D, Wight D, Changalucha J, Mshana G, Wamoyi J, Todd J, Anemona A, Mosha F, Obasi A, et al. \u201cA bit more truthful\u201d: the validity of adolescent sexual behaviour data collected in rural northern Tanzania using five methods. Sex Transm Infect. 2004;80(2):45\u201356.","journal-title":"Sex Transm Infect"},{"issue":"8","key":"722_CR154","doi-asserted-by":"publisher","first-page":"e0182567","DOI":"10.1371\/journal.pone.0182567","volume":"12","author":"AM Doyle","year":"2017","unstructured":"Doyle AM, Plummer ML, Weiss HA, Changalucha J, Watson-Jones D, Hayes RJ, Ross DA. Concurrency and other sexual partnership patterns reported in a survey of young people in rural northern Tanzania. PLoS One. 2017;12(8):e0182567.","journal-title":"PLoS One"},{"key":"722_CR155","unstructured":"Child Trends Databank. Oral sex behaviors among teens. 2015. Available from: \n                    https:\/\/www.childtrends.org\/wp-content\/uploads\/2015\/11\/indicator_1446940280.638.pdf\n                    \n                  . Accessed 3 May 2019."},{"issue":"2","key":"722_CR156","doi-asserted-by":"publisher","first-page":"329","DOI":"10.1007\/s10508-015-0654-6","volume":"45","author":"ES Lefkowitz","year":"2016","unstructured":"Lefkowitz ES, Vasilenko SA, Leavitt CE. Oral vs. vaginal sex experiences and consequences among first-year college students. Arch Sex Behav. 2016;45(2):329\u201337.","journal-title":"Arch Sex Behav"},{"issue":"2","key":"722_CR157","doi-asserted-by":"publisher","first-page":"229","DOI":"10.1542\/peds.2006-1727","volume":"119","author":"SS Brady","year":"2007","unstructured":"Brady SS, Halpern-Felsher BL. Adolescents\u2019 reported consequences of having oral sex versus vaginal sex. Pediatrics. 2007;119(2):229\u201336.","journal-title":"Pediatrics"},{"issue":"7","key":"722_CR158","doi-asserted-by":"publisher","first-page":"776","DOI":"10.1080\/00224499.2015.1117564","volume":"53","author":"Ruth Lewis","year":"2016","unstructured":"Lewis R, Marston C. Oral sex, young people, and gendered narratives of reciprocity. J Sex Res. 2016;53(7):776\u201387.","journal-title":"The Journal of Sex Research"},{"issue":"9","key":"722_CR159","doi-asserted-by":"publisher","first-page":"1096","DOI":"10.1080\/00224499.2015.1069784","volume":"53","author":"Z Duby","year":"2016","unstructured":"Duby Z, Hartmann M, Mahaka I, Munaiwa O, Nabukeera J, Vilakazi N, Mthembu F, Colvin CJ, Mensch B, van der Straten A. Lost in translation: language, terminology, and understanding of penile-anal intercourse in an HIV prevention trial in South Africa, Uganda, and Zimbabwe. J Sex Res. 2016;53(9):1096\u2013106.","journal-title":"J Sex Res"},{"issue":"2","key":"722_CR160","doi-asserted-by":"publisher","first-page":"80","DOI":"10.1136\/sextrans-2013-051292","volume":"90","author":"CH Mercer","year":"2014","unstructured":"Mercer CH, Wellings K, Johnson AM. What\u2019s new about Natsal-3? Sex Transm Infect. 2014;90(2):80\u20131.","journal-title":"Sex Transm Infect"}],"container-title":["Reproductive Health"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1186\/s12978-019-0722-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/article\/10.1186\/s12978-019-0722-9\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.1186\/s12978-019-0722-9.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,5,4]],"date-time":"2020-05-04T23:17:58Z","timestamp":1588634278000},"score":1,"resource":{"primary":{"URL":"https:\/\/reproductive-health-journal.biomedcentral.com\/articles\/10.1186\/s12978-019-0722-9"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,5,6]]},"references-count":160,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2019,12]]}},"alternative-id":["722"],"URL":"https:\/\/doi.org\/10.1186\/s12978-019-0722-9","relation":{},"ISSN":["1742-4755"],"issn-type":[{"value":"1742-4755","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,5,6]]},"assertion":[{"value":"10 May 2018","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"15 April 2019","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"6 May 2019","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"Not applicable.","order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare that they have no competing interests.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}},{"value":"Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Publisher\u2019s Note"}}],"article-number":"48"}}