Norwegian Institute of Public Health, Oslo, Norway.
BMC Infect Dis. 2012 Jul 2;12:150. doi: 10.1186/1471-2334-12-150.
The number of diagnosed cases of Chlamydia trachomatis infection has been increasing in the past years in Norway although the testing rate has been relatively stable. The aim of this study was to measure the prevalence of genital Chlamydia trachomatis in young men and women in one county in Norway and determine associated factors in order to better target preventive measures.
We mailed to a random sample of 10,000 persons aged 18-25 in Rogaland county a mail-back urine sample kit and a self-administered questionnaire with questions on socio-demographic details, health seeking behaviour and symptoms of and history of sexually transmitted diseases. Associations between current Clamydia trachomatis infection and the above mentioned factors were studied by multiple logistic regression.
The response rate among women was 18.9% (930/4923) and 11.9% (605/5077) among men. The prevalence of Chlamydia trachomatis infection was 5.8% (95% CI 4.5-6.8) among women and 5.1% (95% CI 3.8-6.8) among men. For men a greater number of partners during the last year (p for trend < 0.001), and living in a municipality without a local youth clinic increased the odds of infection (OR 8.6, 95% CI 2.2-33.9). For women a greater number of partners during the last year (p < 0.001) and not having consulted a family doctor for STIs (OR 2.1 95% CI 1.1-4.2) were positively associated with infection while not having a previous Chlamydia trachomatis diagnosis decreased the odds of having this infection (OR 0.3, 95% CI 0.2-0.7).
Our results indicate the importance of having a visible youth clinic in each municipality. It also suggests targeting women who have had a previous Chlamydia trachomatis infection diagnosed before.
尽管检测率相对稳定，但过去几年挪威诊断出的沙眼衣原体感染病例数一直在增加。本研究的目的是测量挪威一个县中年轻男性和女性的生殖道沙眼衣原体流行率，并确定相关因素，以便更好地针对预防措施。
我们向罗加兰县 10000 名年龄在 18-25 岁的随机抽样人群邮寄了尿液样本回邮套件和一份自我管理的问卷，其中包括社会人口统计学细节、寻求健康服务的行为以及性传播疾病的症状和病史。通过多因素逻辑回归分析了当前沙眼衣原体感染与上述因素之间的关系。
女性的回复率为 18.9%（930/4923），男性为 11.9%（605/5077）。沙眼衣原体感染率在女性中为 5.8%（95%CI 4.5-6.8），在男性中为 5.1%（95%CI 3.8-6.8）。对于男性，去年性伴侣数量较多（趋势 p<0.001），以及居住在没有当地青年诊所的自治市，感染的几率增加（OR 8.6，95%CI 2.2-33.9）。对于女性，去年性伴侣数量较多（p<0.001）和未因性传播感染咨询家庭医生（OR 2.1，95%CI 1.1-4.2）与感染呈正相关，而以前没有沙眼衣原体感染诊断则降低了感染的几率（OR 0.3，95%CI 0.2-0.7）。
我们的结果表明，在每个自治市设立一个可见的青年诊所非常重要。它还建议针对以前被诊断出患有沙眼衣原体感染的女性。
