{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T20:40:09Z","timestamp":1777927209409,"version":"3.51.4"},"reference-count":23,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2017,12,4]],"date-time":"2017-12-04T00:00:00Z","timestamp":1512345600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Int J STD AIDS"],"published-print":{"date-parts":[[2018,5]]},"abstract":"<jats:p>We report positivity rates of Chlamydia trachomatis (CT) and Neisseria gonorrhoeae (NG) infection at each anatomic site among asymptomatic men who have sex with men (MSM). We calculated the number needed to screen (NNS) to detect CT and NG infection at each anatomic site. From 2006 to 2010, we enrolled Thai MSM, age \u2265 18 years into the Bangkok MSM Cohort Study. Participants underwent physical examination and had rectal, urethral, and pharyngeal screening for CT and NG infection using nucleic acid amplification tests (NAATs). Of 1744 enrollees, 1696 (97.2%) had no symptoms of CT and NG infection. The positivity rates of CT and NG infection at any site were 14.3% (rectum, urethra, pharynx) and 6.4% (rectum, urethra), respectively. The NNS to detect rectal CT and rectal NG infections was 10 and 16, respectively (p\u2009&lt;\u20090.05). For urethral infection, the NNS of CT was lower than the NNS of NG (22, 121: p\u2009&lt;\u20090.05). The lowest NNS found for rectal CT infection was in HIV-infected MSM (6, 5\u20138). Asymptomatic CT and NG infection were common among MSM in Bangkok, Thailand and frequently detected in the rectum. In setting where screening in all specimens using NAAT is not feasible, rectal screening should be a priority.<\/jats:p>","DOI":"10.1177\/0956462417744904","type":"journal-article","created":{"date-parts":[[2017,12,4]],"date-time":"2017-12-04T03:43:34Z","timestamp":1512359014000},"page":"577-587","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["Screening for\n                    <i>Chlamydia trachomatis<\/i>\n                    and\n                    <i>Neisseria gonorrhoeae<\/i>\n                    infection among asymptomatic men who have sex with men in Bangkok, Thailand"],"prefix":"10.1177","volume":"29","author":[{"given":"Sarika","family":"Pattanasin","sequence":"first","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eileen F","family":"Dunne","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"},{"name":"Division of HIV\/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Punneeporn","family":"Wasinrapee","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jaray","family":"Tongtoyai","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wannee","family":"Chonwattana","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anuwat","family":"Sriporn","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pikunchai","family":"Luechai","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philip A","family":"Mock","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anupong","family":"Chitwarakorn","sequence":"additional","affiliation":[{"name":"Department of Disease Control, Ministry of Public health, Nonthaburi, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Timothy H","family":"Holtz","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"},{"name":"Division of HIV\/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA"},{"name":"Division of Global HIV and TB, Centers for Disease Control and Prevention, Atlanta, GA, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marcel E","family":"Curlin","sequence":"additional","affiliation":[{"name":"Thailand Ministry of Public Health \u2013 U.S. Centers for Disease Control and Prevention Collaboration, Nonthaburi, Thailand"},{"name":"Division of HIV\/AIDS Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA"},{"name":"Department of Medicine, Division of Infectious Diseases, Oregon Health and Sciences University, Portland, OR, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2017,12,4]]},"reference":[{"key":"bibr1-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1371\/journal.pone.0118863"},{"key":"bibr2-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1007\/s10461-011-9884-3"},{"key":"bibr3-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2458-13-1059"},{"key":"bibr4-0956462417744904","doi-asserted-by":"crossref","unstructured":"Tongtoyai J, Todd CS, Chonwattana W, et al. Prevalence and correlates of\n                      Chlamydia trachomatis\n                      and\n                      Neisseria gonorrhoeae\n                      by anatomic site among urban Thai men who have sex with men.\n                      Sex Transm Dis\n                      2015;  42: 440\u2013449.","DOI":"10.1097\/OLQ.0000000000000311"},{"key":"bibr5-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1136\/sti.75.1.3"},{"key":"bibr6-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1097\/00007435-199219020-00001"},{"key":"bibr7-0956462417744904","first-page":"1","volume":"59","author":"Workowski KA","year":"2010","journal-title":"MMWR Recomm Rep"},{"key":"bibr8-0956462417744904","unstructured":"MOPH. Thailand National Guideline for sexually transmitted infections. Department of Diseases Control. Bangkok: Aksorn Graphic and Design Publisher, 2015."},{"key":"bibr9-0956462417744904","doi-asserted-by":"crossref","first-page":"1","DOI":"10.15585\/mmwr.rr6404a1","volume":"64","author":"Workowski KA","year":"2015","journal-title":"MMWR Recomm Rep"},{"key":"bibr10-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1097\/OLQ.0000000000000553"},{"key":"bibr11-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.317.7154.307"},{"key":"bibr12-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1186\/1471-2458-13-373"},{"key":"bibr13-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1097\/QAD.0b013e32835c546e"},{"key":"bibr14-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1258\/ijsa.2011.011256"},{"key":"bibr15-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1128\/JCM.01217-11"},{"key":"bibr16-0956462417744904","unstructured":"Manual for COBAS AMPLICOR CT\/NG Test for\n                      Neisseria gonorrhoeae\n                      , Revision 5.0, Roche Diagnostics 10\/2004."},{"key":"bibr17-0956462417744904","unstructured":"WHO. Youth and health risks: report by the secretariat. Geneva: WHO, 2011."},{"key":"bibr18-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1186\/s12879-016-2141-7"},{"key":"bibr19-0956462417744904","doi-asserted-by":"publisher","DOI":"10.1155\/2016\/5758387"},{"key":"bibr20-0956462417744904","unstructured":"Silom Community Clinic @TropMed, 2017. 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