Wolff Hans, Lourenço Ana, Bodenmann Patrick, Epiney Manuella, Uny Monique, Andreoli Nicole, Irion Olivier, Gaspoz Jean-Michel, Dubuisson Jean-Bernard
Department of Community Medicine and Primary Care, University Hospitals of Geneva, University of Geneva, Switzerland.
BMC Public Health. 2008 Nov 24;8:391. doi: 10.1186/1471-2458-8-391.
Chlamydia trachomatis infection (CTI) is the most frequent sexual transmitted disease (STI) in Switzerland but its prevalence in undocumented migrants is unknown. We aimed to compare CTI prevalence among undocumented migrants undergoing termination of pregnancy (ToP) to the prevalence among women with residency permit.
This prospective cohort study included all pregnant, undocumented women presenting from March 2005 to October 2006 to the University hospital for ToP. The control group consisted of a systematic sample of pregnant women with legal residency permit coming to the same hospital during the same time period for ToP.
One hundred seventy five undocumented women and 208 women with residency permit (controls) were included in the study. Mean ages were 28.0 y (SD 5.5) and 28.2 y (SD 7.5), respectively (p = 0.77). Undocumented women came primarily from Latin-America (78%). Frequently, they lacked contraception (23%, controls 15%, OR 1.8, 95% CI 1.04;2.9). Thirteen percent of undocumented migrants were found to have CTI (compared to 4.4% of controls; OR 3.2, 95% CI 1.4;7.3).
This population of undocumented, pregnant migrants consisted primarily of young, Latino-American women. Compared to control women, undocumented migrants showed higher prevalence rates of genital CTI, which indicates that health professionals should consider systematic screening for STI in this population. There is a need to design programs providing better access to treatment and education and to increase migrants' awareness of the importance of contraception and transmission of STI.
沙眼衣原体感染（CTI）是瑞士最常见的性传播疾病（STI），但其在无证移民中的患病率尚不清楚。我们旨在比较接受人工流产（ToP）的无证移民中CTI的患病率与有居留许可的女性中的患病率。
这项前瞻性队列研究纳入了2005年3月至2006年10月到大学医院进行人工流产的所有怀孕无证女性。对照组由同期到同一家医院进行人工流产的有合法居留许可的孕妇的系统样本组成。
175名无证女性和208名有居留许可的女性（对照组）纳入研究。平均年龄分别为28.0岁（标准差5.5）和28.2岁（标准差7.5）（p = 0.77）。无证女性主要来自拉丁美洲（78%）。她们经常缺乏避孕措施（23%，对照组为15%，比值比1.8，95%置信区间1.04；2.9）。发现13%的无证移民患有CTI（对照组为4.4%；比值比3.2，95%置信区间1.4；7.3）。
这群无证怀孕移民主要由年轻的拉丁裔美国女性组成。与对照女性相比，无证移民的生殖器CTI患病率更高，这表明卫生专业人员应考虑对该人群进行系统性的性传播感染筛查。有必要设计相关项目，使人们能更好地获得治疗和教育，并提高移民对避孕和性传播感染传播重要性的认识。
