{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T15:02:48Z","timestamp":1776351768351,"version":"3.51.2"},"reference-count":10,"publisher":"BMJ","issue":"3","funder":[{"name":"Shaoxing Health Science and Technology project","award":["2022KY041"],"award-info":[{"award-number":["2022KY041"]}]}],"content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["Sex Transm Infect"],"accepted":{"date-parts":[[2025,11,2]]},"published-print":{"date-parts":[[2026,5]]},"abstract":"\n Objectives<\/jats:title>\n \n Genital\n Chlamydia trachomatis<\/jats:italic>\n (\n C. trachomatis<\/jats:italic>\n ) is the most prevalent bacterial sexually transmitted infection globally, with partner notification being a major challenge. This study combined partner notification and self-sampling to assess the\n C. trachomatis<\/jats:italic>\n prevalence among sexual partners and assessed the association between partner positivity and age, symptoms and clinical department.\n <\/jats:p>\n <\/jats:sec>\n \n Methods<\/jats:title>\n \n Conducted at Shaoxing Maternal and Child Health Hospital from 18 October 2023 to 29 April 2025, the cross-sectional study involved notifying 1543 women diagnosed with\n C. trachomatis<\/jats:italic>\n to return for treatment. The hospital provided self-sampling test kits, free testing and treatment services for their male partners. We analysed the links between partner positivity and the age, symptoms and clinical departments of the diagnosed women.\n <\/jats:p>\n <\/jats:sec>\n \n Results<\/jats:title>\n \n 1191 women returned to the clinic and received treatment, and 599 urine kits were distributed, 504 were returned, yielding an 84.1% return rate (504\/599). Among the returned specimens, 220 (43.9%, 220\/501, with three specimens excluded due to incomplete data) tested positive for\n C. trachomatis<\/jats:italic>\n . Women aged 16\u201325 with a\n C. trachomatis<\/jats:italic>\n diagnosis had the highest partner positivity rate at 53.5% (83\/155), which is 3.17 times higher than those aged 41 and older (OR=3.17, 95% CI 1.52 to 6.59). The 26\u201340 age group had the second-highest rate at 41.5% (125\/301), nearly double that of the 41+ age group (OR=1.95, 95%CI 0.97 to 3.93). The symptomatic status and the recruitment clinics of women diagnosed with\n C. trachomatis<\/jats:italic>\n did not significantly affect partner positivity rates.\n <\/jats:p>\n <\/jats:sec>\n \n Conclusions<\/jats:title>\n \n The prevalence of\n C. trachomatis<\/jats:italic>\n infection was prevalent among partners of infected individuals, particularly those under 25 years of age, indicating a need for targeted interventions within this demographic.\n <\/jats:p>\n <\/jats:sec>","DOI":"10.1136\/sextrans-2025-056610","type":"journal-article","created":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T18:20:53Z","timestamp":1764786053000},"page":"182-184","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Evaluation of chlamydia trachomatis prevalence in male sexual partners: a hospital-based cross-sectional study in Shaoxing, China"],"prefix":"10.1136","volume":"102","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7266-061X","authenticated-orcid":false,"given":"Jieqiong","family":"Guan","sequence":"first","affiliation":[{"name":"Department of Public Health, Shaoxing Maternity and Child Health Care Hospital & Maternity and Child Health Care Affiliated Hospital, Shaoxing University, Shaoxing, Zhejiang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Feng","sequence":"additional","affiliation":[{"name":"Department of Public Health, Shaoxing Maternity and Child Health Care Hospital & Maternity and Child Health Care Affiliated Hospital, Shaoxing University, Shaoxing, Zhejiang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinlong","family":"Ding","sequence":"additional","affiliation":[{"name":"Department of Laboratory Medicine, Shaoxing Maternity and Child Health Care Hospital & Maternity and Child Health Care Affiliated Hospital, Shaoxing University, Shaoxing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lingying","family":"Zhu","sequence":"additional","affiliation":[{"name":"Department of Public Health, Shaoxing Maternity and Child Health Care Hospital & Maternity and Child Health Care Affiliated Hospital, Shaoxing University, Shaoxing, Zhejiang, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2025,12,3]]},"reference":[{"key":"2026041607151274000_102.3.182.1","doi-asserted-by":"publisher","DOI":"10.2471\/BLT.18.228486"},{"key":"2026041607151274000_102.3.182.2","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0037778","article-title":"Chlamydia trachomatis incidence and re-infection among young women--behavioural and microbiological characteristics","volume":"7","author":"Walker","year":"2012","journal-title":"PLoS One"},{"key":"2026041607151274000_102.3.182.3","doi-asserted-by":"publisher","DOI":"10.1177\/0956462412472804"},{"key":"2026041607151274000_102.3.182.4","doi-asserted-by":"publisher","DOI":"10.3310\/hta18520"},{"key":"2026041607151274000_102.3.182.5","doi-asserted-by":"publisher","DOI":"10.1136\/sextrans-2022-055557"},{"key":"2026041607151274000_102.3.182.6","doi-asserted-by":"crossref","DOI":"10.1371\/journal.pone.0321492","article-title":"Active screening significantly improves detection of chlamydia in women\u2019s health clinics in Shaoxing, China","volume":"20","author":"Guan","year":"2025","journal-title":"PLoS One"},{"key":"2026041607151274000_102.3.182.7","first-page":"193","article-title":"Guideline for the diagnosis and treatment of Chlamydia trachomatis urogenital infection in China","volume":"57","year":"2024","journal-title":"Chin J Dermatol"},{"key":"2026041607151274000_102.3.182.8","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1177\/0956462420956852","article-title":"Managing contacts of chlamydia: should clinics implement a test and wait process?","volume":"32","author":"Frackelton","year":"2021","journal-title":"Int J STD AIDS"},{"key":"2026041607151274000_102.3.182.9","doi-asserted-by":"publisher","DOI":"10.1136\/sextrans-2016-053067"},{"key":"2026041607151274000_102.3.182.10","doi-asserted-by":"crossref","first-page":"413","DOI":"10.1071\/SH21078","article-title":"How accurate is presumptive Chlamydia trachomatis treatment? A 6-month clinical audit of a walk-in sexual health service","volume":"18","author":"Jacups","year":"2021","journal-title":"Sex Health"}],"container-title":["Sexually Transmitted Infections"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/sextrans-2025-056610","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,16]],"date-time":"2026-04-16T14:15:34Z","timestamp":1776348934000},"score":1,"resource":{"primary":{"URL":"https:\/\/sti.bmj.com\/lookup\/doi\/10.1136\/sextrans-2025-056610"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,12,3]]},"references-count":10,"journal-issue":{"issue":"3","published-online":{"date-parts":[[2026,4,16]]},"published-print":{"date-parts":[[2026,5]]}},"alternative-id":["10.1136\/sextrans-2025-056610"],"URL":"https:\/\/doi.org\/10.1136\/sextrans-2025-056610","relation":{},"ISSN":["1368-4973","1472-3263"],"issn-type":[{"value":"1368-4973","type":"print"},{"value":"1472-3263","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,12,3]]}}}