南京市男男性行为人群随访中队列保持研究

目的 了解南京市男男性行为人群(men who have sex with men,MSM)随访中HIV新发感染率、队列保持情况及其影响因素.方法 采用前瞻性队列研究,于2008年4月始对符合纳入标准的361名MSM招募者进行间隔6个月和12个月的随访,检测HIV抗体,估算HIV抗体阳转率,并分析MSM的社会人口学和高危行为特征与12个月时队列保持率的关系.结果 南京MSM队列12个月的HIV抗体阳转率为5.09/100人年,随访12个月时队列保持率为61.5%.多因素Logistic回归分析显示,与队列保持率有统计学意义的变量为户籍所在地为南京(OR=2.430,95% CI=1.409～4.190)、6个月能随访到(OR=11.664,95% CI=6.509～20.901)、寻找性伴场所为互联网(OR=2.222,95% CI=1.228～4.022)、近1年参加同伴教育活动(OR=2.080,95% CI=1.095～3.950)和年龄大于30岁(OR=3.296,95% CI=1.737～6.253).结论 该地区MSM人群中有较高的HIV新发感染率和高危性行为暴露率,户籍为当地、年龄较大、近1年接受过同伴教育以及通过互联网寻找性伴的MSM较容易保持在随访队列中.

Incidence of HIV infection,retention rate in a prospective cohort among men who have sex with men in Nanjing

Objective To investigate the incidence of human immunodeficiency virus(HIV) infection and the retention rate in the follow-up of the prospective cohort study among men who have sex with men(MSM) in Nanjing. Methods A community-based baseline survey was conducted to recruit 361 MSM for a prospective cohort study in Nanjing,Jiangsu.Follow-ups were conducted at the 6th,12th month to analyze risk factors associated with cohort retention for subjects' baseline socio-demographic and sexual behavioral characterist...