针对流动人口的艾滋病毒监测与研究：整合应答驱动抽样、病例发现及法医学服务的方案，为居住在哥伦比亚的委内瑞拉人提供服务
HIV Surveillance and Research for Migrant Populations: Protocol Integrating Respondent-Driven Sampling, Case Finding, and Medicolegal Services for Venezuelans Living in Colombia.
作者信息
Wirtz Andrea L, Page Kathleen R, Stevenson Megan, Guillén José Rafael, Ortíz Jennifer, López Jhon Jairo, Ramírez Jhon Fredy, Quijano Cindy, Vela Alejandra, Moreno Yessenia, Rigual Francisco, Case James, Hakim Avi J, Hladik Wolfgang, Spiegel Paul B
机构信息
Center for Public Health and Human Rights, Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.
Center for Humanitarian Health, Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.
出版信息
JMIR Res Protoc. 2022 Mar 8;11(3):e36026. doi: 10.2196/36026.
BACKGROUND
Epidemiologic research among migrant populations is limited by logistical, methodological, and ethical challenges, but it is necessary for informing public health and humanitarian programming.
OBJECTIVE
We describe a methodology to estimate HIV prevalence among Venezuelan migrants in Colombia.
METHODS
Respondent-driven sampling, a nonprobability sampling method, was selected for attributes of reaching highly networked populations without sampling frames and analytic methods that permit estimation of population parameters. Respondent-driven sampling was modified to permit electronic referral of peers via SMS text messaging and WhatsApp. Participants complete sociobehavioral surveys and rapid HIV and syphilis screening tests with confirmatory testing. HIV treatment is not available for migrants who have entered Colombia through irregular pathways; thus, medicolegal services integrated into posttest counseling provide staff lawyers and legal assistance to participants diagnosed with HIV or syphilis for sustained access to treatment through the national health system. Case finding is integrated into respondent-driven sampling to allow partner referral. This study is implemented by a local community-based organization providing HIV support services and related legal services for Venezuelans in Colombia.
RESULTS
Data collection was launched in 4 cities in July and August 2021. As of November 2021, 3105 of the target 6100 participants were enrolled, with enrollment expected to end by February/March 2022.
CONCLUSIONS
Tailored methods that combine community-led efforts with innovations in sampling and linkage to care can aid in advancing health research for migrant and displaced populations. Worldwide trends in displacement and migration underscore the value of improved methods for translation to humanitarian and public health programming.
INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/36026.
背景
移民人群中的流行病学研究受到后勤、方法和伦理等方面挑战的限制，但对于为公共卫生和人道主义规划提供信息而言是必要的。
目的
我们描述一种估算哥伦比亚境内委内瑞拉移民中艾滋病毒流行率的方法。
方法
选择应答驱动抽样这一非概率抽样方法，是因其具有能够覆盖无抽样框架的高度网络化人群的特性以及可用于估算总体参数的分析方法。应答驱动抽样进行了改进，以允许通过短信和WhatsApp进行同伴的电子推荐。参与者完成社会行为调查以及艾滋病毒和梅毒快速筛查检测，并进行确证检测。对于通过非正规途径进入哥伦比亚的移民无法提供艾滋病毒治疗；因此，纳入检测后咨询的法医学服务为被诊断出感染艾滋病毒或梅毒的参与者提供工作人员律师及法律援助，以便通过国家卫生系统持续获得治疗。病例发现纳入应答驱动抽样以实现性伴推荐。本研究由一个为哥伦比亚境内委内瑞拉人提供艾滋病毒支持服务及相关法律服务的当地社区组织实施。
结果
数据收集于2021年7月和8月在4个城市启动。截至2021年11月，在6100名目标参与者中已有3105人登记入组，预计登记工作将于2022年2月/3月结束。
结论
将社区主导的努力与抽样及与护理联系方面的创新相结合的定制方法，有助于推进针对移民和流离失所人群的健康研究。全球范围内的流离失所和移民趋势凸显了改进方法对于转化为人道主义和公共卫生规划的价值。
国际注册报告识别码（IRRID）：DERR1-10.2196/36026
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