HIV and AIDS Program, Population Council, New Delhi - 110003, India.
BMC Public Health. 2011 Dec 29;11 Suppl 6(Suppl 6):S6. doi: 10.1186/1471-2458-11-S6-S6.
Recent studies of male migrants in India indicate that those who are infected with HIV are spreading the epidemic from high risk populations in high prevalence areas to populations in low prevalence areas. In this context, migrant men are believed to initiate and have risky sexual behaviors in places of destination and not in places of origin. The paucity of information on men's risky sexual behaviors in places of origin limits the decision to initiate HIV prevention interventions among populations in high out-migration areas in India.
A cross-sectional behavioral survey was conducted among non-migrants, returned migrants (with a history of migration), and active (current) migrants in rural areas across two districts with high levels of male out-migration: Prakasam district in Andhra Pradesh and Azamgarh district in Uttar Pradesh. Surveys assessed participant demographics, migration status, migration history, and sexual behavior along the migration routes, place of initiation of sex. District-stratified regression models were used to understand the associations between migration and risky sexual behaviors (number of partners, condom use at last sex) and descriptive analyses of migrants' place of sexual initiation and continuation along migration routes.
The average age at migration of our study sample was 19 years. Adjusted regression analyses revealed that active migrants were more likely to engage in sex with sex workers in the past 12 months (Prakasam: 15 percent vs. 8 percent; adjusted odds ratio (aOR)=2.1, 95% CI 1.2-3.4; Azamgarh: 19 percent vs.7 percent; aOR=4.0, 95% CI 2.4-6.6) as well as have multiple (3+) sex partners (Prakasam: 18 percent vs. 9 percent; aOR=2.0, 95% CI 1.3-3.2; Azamgarh: 28 percent vs. 21 percent; aOR=1.9, 95% CI 1.2-3.0) than non-migrants. Contrary to popular belief, a high proportion of active and returned migrants (almost 75 percent of those who had sex) initiated sex at the place of origin before migrating, which is equivalent to the proportion of non-migrants who engaged in sex with sex workers as well as with casual unpaid partners. Moreover, non-migrants were more likely than migrants to engage in unprotected sex.
Findings of this study document that returned migrants and active migrants have higher sexual risk behaviors than the non-migrants. Most migrants initiate non-marital sex in the place of origin and many continue these behaviors in places of destination. Migrants' destination area behaviors are linked to sex with sex workers and they continue to practice such behaviors in the place of origin as well. Unprotected sex in places of destination with high HIV prevalence settings poses a risk of transmission from high risk population groups to migrants, and in turn to their married and other sexual partners in places of origin. These findings suggest the need for controlling the spread of HIV among both men and women resulting from unsafe sex in places of origin that have high vulnerability due to the frequent migratory nature of populations.
最近对印度男性移民的研究表明,那些感染艾滋病毒的人正在将疫情从高患病率地区的高危人群传播到低患病率地区的人群。在这种情况下,移民男性被认为是在目的地而不是原籍地开始并进行危险的性行为。由于缺乏有关原籍地男性危险性行为的信息,限制了在印度高移民地区人群中启动艾滋病毒预防干预措施的决策。
在两个男性移民水平较高的地区(安得拉邦的普拉卡萨姆区和北方邦的阿扎姆加尔区)的农村地区,对非移民、返乡移民(有移民史)和现居移民(目前移民)进行了横断面行为调查。调查评估了参与者的人口统计学特征、移民状况、移民史以及沿移民路线的性行为,包括性行为的开始地点。使用区(stratified)分层回归模型来理解移民与危险性行为(性伴侣数量、上次性行为时使用安全套)之间的关联,并对移民在沿移民路线的性开始和延续地点进行描述性分析。
我们研究样本的平均移民年龄为 19 岁。调整后的回归分析显示,现居移民更有可能在过去 12 个月内与性工作者发生性行为(普拉卡萨姆:15%比 8%;调整后的优势比(aOR)=2.1,95%置信区间(CI)1.2-3.4;阿扎姆加尔:19%比 7%;aOR=4.0,95% CI 2.4-6.6),并且有多个(3+)性伴侣(普拉卡萨姆:18%比 9%;aOR=2.0,95% CI 1.3-3.2;阿扎姆加尔:28%比 21%;aOR=1.9,95% CI 1.2-3.0)。与普遍看法相反,相当一部分现居和返乡移民(几乎 75%有过性行为的人)在移民前就在原籍地开始了性行为,这与在原籍地与性工作者以及与非付费的临时伴侣发生性行为的非移民比例相当。此外,非移民比移民更有可能发生无保护性行为。
本研究的结果表明,返乡移民和现居移民的性风险行为比非移民高。大多数移民在原籍地开始非婚姻性行为,许多人在目的地继续这种行为。移民在目的地的行为与与性工作者发生性行为有关,他们也在原籍地继续这种行为。在艾滋病毒流行率高的目的地地区发生无保护性行为,会使高危人群将病毒传播给移民,进而传播给移民在原籍地的已婚和其他性伴侣。这些发现表明,需要控制因高危人群经常移民而导致的原籍地不安全性行为导致的男女艾滋病毒传播。