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Abstract：
BACKGROUND: Chlamydia trachomatis (CT) infections are a public health problem because of its high incidence and consequences on reproductive health. Our aim is to describe the socio-demographic, behavioral and clinical characteristics of patients with CT infection in order to adapt preventive interventions for the highest risk groups.
METHODS: Prospective case series of all patients diagnosed with CT between September 2016 and January 2019 in the reference STI clinics of Osakidetza (Basque Health Service) in Bizkaia (Spain) RESULTS: 847 patients (88.2%) agreed to participate: 41% women, 33.8% heterosexual men and 25% men who has sex with men (MSM); 33% were immigrants and 26% were under the age of 25 (33% of the women). Only 20% systematically used condoms. 36% had previously had STI and 28% had simultaneously another STI. 55% of the infections were asymptomatic (70% among women). In MSM, the rectum was affected in 69.5% of cases, the urethra in 31.4%, and the pharynx in 14.5%. The cervix was affected in 86.5% of the women, the rectum in 17.6%, and the pharynx in 13.8%. A contact study was only carried out in 58% of cases. The reinfection rate at 4 weeks was 17% among those with criteria to perform a test of cure.
CONCLUSIONS: Our results justify implement opportunistic screening in women under the age of 25 and young immigrants of both sexes, by taking genital and extragenital samples, as well as developing appropriate guidelines for the notification and follow-up of contacts.
METHODS: Prospective case series of all patients diagnosed with CT between September 2016 and January 2019 in the reference STI clinics of Osakidetza (Basque Health Service) in Bizkaia (Spain) RESULTS: 847 patients (88.2%) agreed to participate: 41% women, 33.8% heterosexual men and 25% men who has sex with men (MSM); 33% were immigrants and 26% were under the age of 25 (33% of the women). Only 20% systematically used condoms. 36% had previously had STI and 28% had simultaneously another STI. 55% of the infections were asymptomatic (70% among women). In MSM, the rectum was affected in 69.5% of cases, the urethra in 31.4%, and the pharynx in 14.5%. The cervix was affected in 86.5% of the women, the rectum in 17.6%, and the pharynx in 13.8%. A contact study was only carried out in 58% of cases. The reinfection rate at 4 weeks was 17% among those with criteria to perform a test of cure.
CONCLUSIONS: Our results justify implement opportunistic screening in women under the age of 25 and young immigrants of both sexes, by taking genital and extragenital samples, as well as developing appropriate guidelines for the notification and follow-up of contacts.
摘要：
背景：沙眼衣原体（CT）感染是一个公共卫生问题，因为它的高发病率和对生殖健康的影响。我们的目的是描述社会人口，CT感染患者的行为和临床特征，以适应高危人群的预防干预措施。
方法：2016年9月至2019年1月在Bizkaia（西班牙）的Osakidetza（巴斯克卫生服务）的参考STI诊所中诊断为CT的所有患者的前瞻性病例系列结果：847名患者（88.2％）同意参加：41％的女性，33.8%的异性恋男性和25%的男男性行为者（MSM）；33%是移民，26%是25岁以下（33%的女性）。只有20%系统地使用避孕套。36%的人以前患有性传播感染，28%的人同时患有另一种性传播感染。55％的感染是无症状的（70％的妇女）。在MSM中,69.5%的病例影响直肠，尿道占31.4%，咽部占14.5%。86.5%的女性子宫颈受累,直肠占17.6%，咽部占13.8%。仅在58％的病例中进行了接触研究。在有治愈测试标准的人中，4周时的再感染率为17％。
结论：我们的结果证明对25岁以下的女性和男女青年移民实施机会性筛查是合理的，通过采集生殖器和外生殖器样本，以及为联系人的通知和后续行动制定适当的准则。
方法：2016年9月至2019年1月在Bizkaia（西班牙）的Osakidetza（巴斯克卫生服务）的参考STI诊所中诊断为CT的所有患者的前瞻性病例系列结果：847名患者（88.2％）同意参加：41％的女性，33.8%的异性恋男性和25%的男男性行为者（MSM）；33%是移民，26%是25岁以下（33%的女性）。只有20%系统地使用避孕套。36%的人以前患有性传播感染，28%的人同时患有另一种性传播感染。55％的感染是无症状的（70％的妇女）。在MSM中,69.5%的病例影响直肠，尿道占31.4%，咽部占14.5%。86.5%的女性子宫颈受累,直肠占17.6%，咽部占13.8%。仅在58％的病例中进行了接触研究。在有治愈测试标准的人中，4周时的再感染率为17％。
结论：我们的结果证明对25岁以下的女性和男女青年移民实施机会性筛查是合理的，通过采集生殖器和外生殖器样本，以及为联系人的通知和后续行动制定适当的准则。
