{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T11:14:00Z","timestamp":1768734840515,"version":"3.49.0"},"reference-count":29,"publisher":"Elsevier BV","issue":"4","license":[{"start":{"date-parts":[[2018,4,1]],"date-time":"2018-04-01T00:00:00Z","timestamp":1522540800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2018,4,1]],"date-time":"2018-04-01T00:00:00Z","timestamp":1522540800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2019,3,2]],"date-time":"2019-03-02T00:00:00Z","timestamp":1551484800000},"content-version":"am","delay-in-days":335,"URL":"http:\/\/www.elsevier.com\/open-access\/userlicense\/1.0\/"}],"funder":[{"DOI":"10.13039\/100009633","name":"Eunice Kennedy Shriver National Institute of Child Health and Human Development","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100009633","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000865","name":"Bill and Melinda Gates Foundation","doi-asserted-by":"publisher","award":["41185"],"award-info":[{"award-number":["41185"]}],"id":[{"id":"10.13039\/100000865","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000865","name":"Bill and Melinda Gates Foundation","doi-asserted-by":"publisher","award":["OPP1056051"],"award-info":[{"award-number":["OPP1056051"]}],"id":[{"id":"10.13039\/100000865","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000865","name":"Bill and Melinda Gates Foundation","doi-asserted-by":"publisher","award":["26469"],"award-info":[{"award-number":["26469"]}],"id":[{"id":"10.13039\/100000865","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000030","name":"Centers for Disease Control and Prevention","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000030","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R21 HD074439"],"award-info":[{"award-number":["R21 HD074439"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008143","name":"Oregon National Primate Research Center","doi-asserted-by":"publisher","award":["P51 OD011092"],"award-info":[{"award-number":["P51 OD011092"]}],"id":[{"id":"10.13039\/100008143","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100006441","name":"Center for Outcomes Research and Evaluation, Yale School of Medicine","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100006441","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100007813","name":"Center for AIDS Research, University of Washington","doi-asserted-by":"publisher","award":["P30 AI027757"],"award-info":[{"award-number":["P30 AI027757"]}],"id":[{"id":"10.13039\/100007813","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100000009","name":"Foundation for the National Institutes of Health","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000009","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","contraceptionjournal.org","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Contraception"],"published-print":{"date-parts":[[2018,4]]},"DOI":"10.1016\/j.contraception.2018.01.011","type":"journal-article","created":{"date-parts":[[2018,2,17]],"date-time":"2018-02-17T08:10:13Z","timestamp":1518855013000},"page":"357-362","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":16,"title":["Concordance of self-reported hormonal contraceptive use and presence of exogenous hormones in serum among African women"],"prefix":"10.1016","volume":"97","author":[{"given":"Maria","family":"Pyra","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jairam R.","family":"Lingappa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Renee","family":"Heffron","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"David W.","family":"Erikson","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Steven W.","family":"Blue","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Rena C.","family":"Patel","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kavita","family":"Nanda","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Helen","family":"Rees","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nelly R.","family":"Mugo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicole L.","family":"Davis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Athena P.","family":"Kourtis","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jared M.","family":"Baeten","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.contraception.2018.01.011_bb0005","doi-asserted-by":"crossref","first-page":"360","DOI":"10.1086\/519432","article-title":"The influence of hormonal contraceptive use on HIV-1 transmission and disease progression","volume":"45","author":"Baeten","year":"2007","journal-title":"Clin Infect Dis"},{"key":"10.1016\/j.contraception.2018.01.011_bb0010","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1016\/S1473-3099(14)71052-7","article-title":"Does hormonal contraceptive use increase women's risk of HIV acquisition? A meta-analysis of observational studies","volume":"15","author":"Ralph","year":"2015","journal-title":"Lancet Infect Dis"},{"key":"10.1016\/j.contraception.2018.01.011_bb0015","doi-asserted-by":"crossref","first-page":"360","DOI":"10.1016\/j.contraception.2014.07.009","article-title":"Hormonal contraceptive methods and risk of HIV acquisition in women: a systematic review of epidemiological evidence","volume":"90","author":"Polis","year":"2014","journal-title":"Contraception"},{"key":"10.1016\/j.contraception.2018.01.011_bb0020","doi-asserted-by":"crossref","first-page":"493","DOI":"10.1097\/QAD.0b013e32835ad539","article-title":"Hormonal contraceptive use and female-to-male HIV transmission: a systematic review of the epidemiologic evidence","volume":"27","author":"Polis","year":"2013","journal-title":"AIDS"},{"key":"10.1016\/j.contraception.2018.01.011_bb0025","doi-asserted-by":"crossref","first-page":"2141","DOI":"10.1097\/QAD.0b013e32836290b6","article-title":"Hormonal contraception decreases bacterial vaginosis but oral contraception may increase candidiasis: implications for HIV transmission","volume":"27","author":"van de Wijgert","year":"2013","journal-title":"AIDS"},{"key":"10.1016\/j.contraception.2018.01.011_bb0030","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0073055","article-title":"Hormonal contraception is associated with a reduced risk of bacterial vaginosis: a systematic review and meta-analysis","volume":"8","author":"Vodstrcil","year":"2013","journal-title":"PLoS One"},{"key":"10.1016\/j.contraception.2018.01.011_bb0035","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1067\/mob.2001.115862","article-title":"Hormonal contraception and risk of sexually transmitted disease acquisition: results from a prospective study","volume":"185","author":"Baeten","year":"2001","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.contraception.2018.01.011_bb0040","doi-asserted-by":"crossref","first-page":"356","DOI":"10.1097\/OLQ.0b013e3181d40ff1","article-title":"Combined hormonal contraception may be protective against Neisseria gonorrhoeae infection","volume":"37","author":"Gursahaney","year":"2010","journal-title":"Sex Transm Dis"},{"key":"10.1016\/j.contraception.2018.01.011_bb0045","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1016\/j.contraception.2005.08.012","article-title":"Hormonal contraceptive use and risk of sexually transmitted infections: a systematic review","volume":"73","author":"Mohllajee","year":"2006","journal-title":"Contraception"},{"key":"10.1016\/j.contraception.2018.01.011_bb0050","doi-asserted-by":"crossref","first-page":"2665","DOI":"10.1097\/QAD.0000000000001228","article-title":"An updated systematic review of epidemiological evidence on hormonal contraceptive methods and HIV acquisition in women","volume":"30","author":"Polis","year":"2016","journal-title":"AIDS"},{"key":"10.1016\/j.contraception.2018.01.011_bb0055","doi-asserted-by":"crossref","first-page":"2203","DOI":"10.1089\/jwh.2010.1963","article-title":"Studying the use of oral contraception: a review of measurement approaches","volume":"19","author":"Hall","year":"2010","journal-title":"J Womens Health"},{"key":"10.1016\/j.contraception.2018.01.011_bb0060","doi-asserted-by":"crossref","first-page":"108","DOI":"10.1016\/j.contraception.2009.02.009","article-title":"Social desirability bias in family planning studies: a neglected problem","volume":"80","author":"Stuart","year":"2009","journal-title":"Contraception"},{"key":"10.1016\/j.contraception.2018.01.011_bb0065","doi-asserted-by":"crossref","first-page":"S35","DOI":"10.1097\/QAD.0000000000000036","article-title":"Assessing the effect of hormonal contraception on HIV acquisition in observational data: challenges and recommended analytic approaches","volume":"27","author":"Polis","year":"2013","journal-title":"AIDS"},{"key":"10.1016\/j.contraception.2018.01.011_bb0070","doi-asserted-by":"crossref","first-page":"417","DOI":"10.1016\/j.contraception.2016.07.128","article-title":"Misreporting of contraceptive hormone use among clinical research participants","volume":"94","author":"Achilles","year":"2016","journal-title":"Contraception"},{"key":"10.1016\/j.contraception.2018.01.011_bb0075","doi-asserted-by":"crossref","first-page":"339","DOI":"10.1097\/QAI.0b013e31827e622d","article-title":"An empiric risk scoring tool for identifying high-risk heterosexual HIV-1 serodiscordant couples for targeted HIV-1 prevention","volume":"62","author":"Kahle","year":"2013","journal-title":"J Acquir Immune Defic Syndr"},{"key":"10.1016\/j.contraception.2018.01.011_bb0080","doi-asserted-by":"crossref","first-page":"427","DOI":"10.1056\/NEJMoa0904849","article-title":"Acyclovir and transmission of HIV-1 from persons infected with HIV-1 and HSV-2","volume":"362","author":"Celum","year":"2010","journal-title":"N Engl J Med"},{"key":"10.1016\/j.contraception.2018.01.011_bb0085","doi-asserted-by":"crossref","first-page":"824","DOI":"10.1016\/S0140-6736(09)62038-9","article-title":"Daily aciclovir for HIV-1 disease progression in people dually infected with HIV-1 and herpes simplex virus type 2: a randomised placebo-controlled trial","volume":"375","author":"Lingappa","year":"2010","journal-title":"Lancet"},{"key":"10.1016\/j.contraception.2018.01.011_bb0090","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0025828","article-title":"Characteristics of HIV-1 serodiscordant couples enrolled in a clinical trial of antiretroviral pre-exposure prophylaxis for HIV-1 prevention","volume":"6","author":"Mujugira","year":"2011","journal-title":"PLoS One"},{"key":"10.1016\/j.contraception.2018.01.011_bb0095","doi-asserted-by":"crossref","first-page":"399","DOI":"10.1056\/NEJMoa1108524","article-title":"Antiretroviral prophylaxis for HIV prevention in heterosexual men and women","volume":"367","author":"Baeten","year":"2012","journal-title":"N Engl J Med"},{"key":"10.1016\/j.contraception.2018.01.011_bb0100","doi-asserted-by":"crossref","first-page":"19","DOI":"10.1016\/S1473-3099(11)70247-X","article-title":"Hormonal contraceptive use and risk of HIV-1 transmission: a prospective cohort analysis","volume":"12","author":"Heffron","year":"2012","journal-title":"Lancet Infect Dis"},{"key":"10.1016\/j.contraception.2018.01.011_bb0105","doi-asserted-by":"crossref","first-page":"1299","DOI":"10.1093\/infdis\/jis480","article-title":"Quantifying ongoing HIV-1 exposure in HIV-1-serodiscordant couples to identify individuals with potential host resistance to HIV-1","volume":"206","author":"Mackelprang","year":"2012","journal-title":"J Infect Dis"},{"key":"10.1016\/j.contraception.2018.01.011_bb0110","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1016\/j.contraception.2018.01.015","article-title":"Simultaneous quantification of multiple contraceptive hormones in human serum by LC-MS\/MS","volume":"37","author":"Blue","year":"2018","journal-title":"Contraception"},{"key":"10.1016\/j.contraception.2018.01.011_bb0115","doi-asserted-by":"crossref","first-page":"465","DOI":"10.1016\/j.contraception.2011.09.019","article-title":"Predictors of noncompliance in an oral contraceptive clinical trial","volume":"85","author":"Westhoff","year":"2012","journal-title":"Contraception"},{"key":"10.1016\/j.contraception.2018.01.011_bb0120","doi-asserted-by":"crossref","first-page":"275","DOI":"10.1097\/AOG.0b013e3181e79440","article-title":"Ovarian suppression in normal-weight and obese women during oral contraceptive use: a randomized controlled trial","volume":"116","author":"Westhoff","year":"2010","journal-title":"Obstet Gynecol"},{"key":"10.1016\/j.contraception.2018.01.011_bb0125","doi-asserted-by":"crossref","first-page":"204","DOI":"10.1016\/j.contraception.2014.11.011","article-title":"Self-reported and verified compliance in a phase 3 clinical trial of a novel low-dose contraceptive patch and pill","volume":"91","author":"Kaunitz","year":"2015","journal-title":"Contraception"},{"key":"10.1016\/j.contraception.2018.01.011_bb0150","doi-asserted-by":"crossref","first-page":"341","DOI":"10.1590\/1980-5497201500020005","article-title":"The effect of misclassification error on risk estimation in case-control studies","volume":"18","author":"Baena","year":"2015","journal-title":"Rev Bras Epidemiol"},{"key":"10.1016\/j.contraception.2018.01.011_bb0155","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1002\/mpr.20","article-title":"The effect of misclassification on the estimation of association: a review","volume":"14","author":"H\u00f6fler","year":"2005","journal-title":"Int J Methods Psychiatr Res"},{"key":"10.1016\/j.contraception.2018.01.011_bb0160","doi-asserted-by":"crossref","first-page":"303","DOI":"10.1016\/S0140-6736(14)60097-0","article-title":"Research on hormonal contraception and HIV","volume":"383","author":"Cates","year":"2014","journal-title":"Lancet Lond Engl"},{"key":"10.1016\/j.contraception.2018.01.011_bb0165","doi-asserted-by":"crossref","first-page":"438","DOI":"10.3109\/13625187.2015.1048331","article-title":"Monitoring the menstrual cycle: comparison of urinary and serum reproductive hormones referenced to true ovulation","volume":"20","author":"Roos","year":"2015","journal-title":"Eur J Contracept Reprod Health Care"}],"container-title":["Contraception"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0010782418300337?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0010782418300337?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,11,2]],"date-time":"2025-11-02T21:10:16Z","timestamp":1762117816000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0010782418300337"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2018,4]]},"references-count":29,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2018,4]]}},"alternative-id":["S0010782418300337"],"URL":"https:\/\/doi.org\/10.1016\/j.contraception.2018.01.011","relation":{},"ISSN":["0010-7824"],"issn-type":[{"value":"0010-7824","type":"print"}],"subject":[],"published":{"date-parts":[[2018,4]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"Concordance of self-reported hormonal contraceptive use and presence of exogenous hormones in serum among African women","name":"articletitle","label":"Article Title"},{"value":"Contraception","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.contraception.2018.01.011","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"\u00a9 2018 Elsevier Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}