{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T02:50:41Z","timestamp":1787021441126,"version":"build-2736575974"},"reference-count":23,"publisher":"SAGE Publications","issue":"5","license":[{"start":{"date-parts":[[2010,5,1]],"date-time":"2010-05-01T00:00:00Z","timestamp":1272672000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int J STD AIDS"],"published-print":{"date-parts":[[2010,5]]},"abstract":"<jats:p>There are few epidemiological studies of asymptomatic chlamydial infection among students in non-medical settings with minimal bias and improved accuracy; thus, useful data from screening among students are limited. We aimed to obtain accurate epidemiological information about asymptomatic chlamydial infection among students in non-medical settings. A population-based cross-sectional survey of 10,440 \u226518-year-old asymptomatic students who volunteered for a urine screening test for chlamydia was conducted. The prevalences of asymptomatic infection were 9.5% for women and 6.7% for men. Multivariate analysis revealed the risk factors to be a lifetime history of \u22654 sexual partners for women (odds ratio [OR] 3.17) and inconsistent condom use for men (OR 4.18). For both sexes, younger age at first intercourse was associated with a higher rate of inconsistent condom use. This study produced accurate epidemiological information on asymptomatic chlamydial infection. These results may contribute to the establishment of preventive countermeasures against such infection.<\/jats:p>","DOI":"10.1258\/ijsa.2010.010026","type":"journal-article","created":{"date-parts":[[2010,5,24]],"date-time":"2010-05-24T15:16:21Z","timestamp":1274714181000},"page":"362-366","source":"Crossref","is-referenced-by-count":17,"title":["Population-based study of asymptomatic infection with\n                    <i>Chlamydia trachomatis<\/i>\n                    among female and male students"],"prefix":"10.1177","volume":"21","author":[{"given":"H","family":"Imai","sequence":"first","affiliation":[{"name":"Department of Epidemiology, National Institute of Public Health, 2-3-6 Minami, Wako-shi, Saitama 351-0197"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H","family":"Nakao","sequence":"additional","affiliation":[{"name":"Department of Epidemiology, National Institute of Public Health, 2-3-6 Minami, Wako-shi, Saitama 351-0197"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H","family":"Shinohara","sequence":"additional","affiliation":[{"name":"Faculty of Education and Culture, University of Miyazaki, 1-1 Gakuen-Kibanadai Nishi, Miyazaki-shi, 889-2192"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y","family":"Fujii","sequence":"additional","affiliation":[{"name":"Faculty of Education and Culture, University of Miyazaki, 1-1 Gakuen-Kibanadai Nishi, Miyazaki-shi, 889-2192"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H","family":"Tsukino","sequence":"additional","affiliation":[{"name":"Department of Urology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R","family":"Hamasuna","sequence":"additional","affiliation":[{"name":"Department of Urology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y","family":"Osada","sequence":"additional","affiliation":[{"name":"Department of Urology"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"K","family":"Fukushima","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Miyazaki Medical College, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki Prefecture 889-1692"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M","family":"Inamori","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Miyazaki Medical College, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki Prefecture 889-1692"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T","family":"Ikenoue","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Miyazaki Medical College, University of Miyazaki, 5200 Kihara, Kiyotake, Miyazaki Prefecture 889-1692"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"T","family":"Katoh","sequence":"additional","affiliation":[{"name":"Department of Public Health, Graduate School of Medical Sciences, Kumamoto University, 39-1, Honjo 1-1-1, Kumamoto-shi, Kumamoto Prefecture 860-8555, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2010,5,1]]},"reference":[{"key":"bibr-IJSA-10-026C1","volume-title":"Sexually Transmitted Diseases Surveillance, 2005","author":"Center for Disease Control and Prevention","year":"2006"},{"key":"bibr-IJSA-10-026C2","doi-asserted-by":"publisher","DOI":"10.1111\/j.1469-0691.2008.02647.x"},{"key":"bibr-IJSA-10-026C3","doi-asserted-by":"publisher","DOI":"10.1093\/humupd\/5.5.433"},{"key":"bibr-IJSA-10-026C4","doi-asserted-by":"publisher","DOI":"10.1001\/archpedi.161.3.246"},{"key":"bibr-IJSA-10-026C5","doi-asserted-by":"publisher","DOI":"10.1097\/OLQ.0b013e3181676697"},{"key":"bibr-IJSA-10-026C6","doi-asserted-by":"publisher","DOI":"10.1136\/sti.79.3.229"},{"key":"bibr-IJSA-10-026C7","doi-asserted-by":"publisher","DOI":"10.1097\/00007435-200104000-00006"},{"key":"bibr-IJSA-10-026C8","doi-asserted-by":"publisher","DOI":"10.1097\/00007435-200307000-00002"},{"key":"bibr-IJSA-10-026C9","doi-asserted-by":"publisher","DOI":"10.1258\/095646202762226100"},{"key":"bibr-IJSA-10-026C10","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(03)14480-7"},{"key":"bibr-IJSA-10-026C11","doi-asserted-by":"publisher","DOI":"10.1001\/jama.287.18.2362"},{"key":"bibr-IJSA-10-026C12","unstructured":"Analytical Research Planning Division, Lifelong Learning Policy Bureau. 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