Department of Health Behavior and Health Education, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, 206 West Franklin Street, CB# 8120 University Square East, Chapel Hill, NC 27516-3997, USA.
Soc Sci Med. 2011 Mar;72(5):717-25. doi: 10.1016/j.socscimed.2011.01.003. Epub 2011 Jan 27.
Approximately 1 million people are infected with Human Immunodeficiency Virus (HIV) in Malawi. Despite efforts aimed at changing individual risk behaviors, HIV prevalence continues to rise among rural populations. Both previous research and the Political Economy of Health framework suggest that community-based socio-economic factors and accessibility may influence HIV transmission; however, these community factors have received little empirical investigation. To fill this gap, this research uses data from a nationally representative probability sample of rural Malawians combined with small area estimates of community socio-economic and accessibility data in logistic regression models to: 1) reveal relationships between community factors and individual HIV status; 2) determine whether these relationships operate through individual HIV risk behaviors; and 3) explore whether these associations vary by gender. Community socio-economic factors include relative and absolute poverty; community accessibility factors include distance to roads, cities, and public health facilities. Individual HIV risk behaviors include reported condom use, sexually transmitted infections, multiple partnerships, and paid sex. Results show that higher community income inequality, community proximity to a major road, and community proximity to a public health clinic are associated with increased odds of HIV for women. For men, community proximity to a major road and community proximity to a public health clinic are associated with increased odds of HIV infection. These direct relationships between community factors and individual HIV status are not mediated by individual HIV risk behaviors. The Political Economy of Health frames the discussion. This study provides evidence for expanding HIV prevention efforts beyond individual risk behaviors to consideration of community factors that may drive the HIV epidemic in rural Malawi.
在马拉维,大约有 100 万人感染了人类免疫缺陷病毒(HIV)。尽管人们努力改变个人的风险行为,但农村人口中的 HIV 感染率仍在继续上升。先前的研究和健康政治经济学框架都表明,基于社区的社会经济因素和可及性可能会影响 HIV 的传播;然而,这些社区因素很少受到实证研究的关注。为了填补这一空白,本研究使用了来自全国农村马拉维人的代表性概率抽样数据,并结合社区社会经济和可及性数据的小区域估计,在逻辑回归模型中:1)揭示社区因素与个人 HIV 状况之间的关系;2)确定这些关系是否通过个人 HIV 风险行为起作用;3)探讨这些关联是否因性别而异。社区社会经济因素包括相对贫困和绝对贫困;社区可达性因素包括距离道路、城市和公共卫生设施的远近。个人 HIV 风险行为包括报告的避孕套使用、性传播感染、多重性伴侣和有偿性行为。研究结果表明,社区收入不平等程度较高、靠近主要道路以及靠近公共卫生诊所与女性 HIV 感染几率增加有关。对于男性,靠近主要道路和靠近公共卫生诊所的社区与 HIV 感染几率增加有关。这些社区因素与个人 HIV 状况之间的直接关系不受个人 HIV 风险行为的影响。健康政治经济学框架提供了讨论的依据。本研究为扩大 HIV 预防工作提供了证据,不仅要考虑个人风险行为,还要考虑可能推动马拉维农村地区 HIV 流行的社区因素。