Epidemiology of genital Chlamydia trachomatis infection among youth aged 15-24 years in Beijing during 2010-2019

Abstract

Objective To investigate epidemiological features of genital Chlamydia trachomatis (Ct) infection among youth aged 15-24 years in Beijing, so as to provide scientific basis for developing control strategies.

Methods Data regarding genital Ct infection among youth aged 15-24 years were collected from the disease surveillance information reporting system in Beijing between 2010 and 2019 and were analyzed with the descriptive epidemiological method.

Results During 2010-2019, a total of 1 871 cases of Ct infection was reported, 1 287(68.79%) of the cases were female. The reported incidence rate of genital Ct infection increased from 3.16 per 100 000 in 2010 to 25.15 per 100 000 in 2019, with an average annual increasing rate of 25.92% (χ ² = 836.86, P<0.01). Increasing trends in the reported incidence were observed among males and females, females being higher than males in the year 2010 and 2012. The reported incidence rates increased annually in all age groups between 2010 and 2019, and the average annual rate of increase was highest in the group aged 15-19 years.

Conclusion The reported rate of genital Ct infection showed an increasing trend among youth aged 15-24 years in Beijing, and increased rapidly among youth aged 15-24 years. More attention should be paid on sexual and reproductive health education among adolescents. Epidemic of genital Ct infection should be concerned, and its surveillance need to be improved.

Abstract

【摘要】 目的 了解 2010—2019 年北京市 15~24 岁人群生殖道沙眼衣原体感染流行情况, 为制定防治策略提供科学依 据。 方法 通过中国疾病预防控制信息系统收集 2010—2019 年北京市 15~24 岁人群生殖道沙眼衣原体感染报告数据, 应 用描述流行病学方法进行分析。 结果 2010—2019 年北京市 15~24 岁人群生殖道沙眼衣原体感染报告病例数累计为 1 871 例, 其中女性 1 287 例 (68.79%); 报告率由 3.16/10 万增加到 25.15/10 万, 年均增长 25.92%, 年增长趋势有统计学意 义 (χ ² = 836.86, P<0.01)。人群报告率均呈增长趋势, 除 2010 和 2012 年外, 女性报告率均高于男性。2010—2019 年各年龄 组报告率均呈增长趋势, 增幅最大的为 15~19 岁人群。 结论 北京市 15~24 岁人群生殖道沙眼衣原体感染报告率呈增长 趋势, 要关注青少年的性与生殖健康教育、重视生殖道沙眼衣原体的流行, 提高监测水平。