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Bayesian estimation of MSM population size in Côte d'Ivoire
Statistics and Public Policy Pub Date : 2019-01-01 , DOI: 10.1080/2330443x.2018.1546634
Abhirup Datta 1 , Wenyi Lin 2 , Amrita Rao 3 , Daouda Diouf 4 , Abo Kouame 5 , Jessie K Edwards 6 , Le Bao 7 , Thomas A Louis 1 , Stefan Baral 3
Affiliation  

ABSTRACT Côte d’Ivoire has among the most generalized HIV epidemics in West Africa with an estimated half million people living with HIV. Across West Africa, key populations, including gay men and other men who have sex with men (MSM), are often disproportionately burdened with HIV due to specific acquisition and transmission risks. Quantifying population sizes of MSM at the subnational level is critical to ensuring evidence-based decisions regarding the scale and content of HIV prevention interventions. While survey-based direct estimates of MSM numbers are available in a few urban centers across Côte d’Ivoire, no data on MSM population size exists in other areas without any community group infrastructure to facilitate sufficient access to communities of MSM. The data are used in a Bayesian regression setup to produce estimates of the numbers of MSM in areas of Côte d’Ivoire prioritized in the HIV response. Our hierarchical model imputes missing covariates using geo-spatial information and allows for proper uncertainty quantification leading to confidence bounds for predicted MSM population size estimates. This process provided population size estimates where there are no empirical data, to guide the prioritization of further collection of empirical data on MSM and inform evidence-based scaling of HIV prevention and treatment programs for MSM across Côte d’Ivoire.

中文翻译:

贝叶斯估计科特迪瓦MSM人口规模

摘要科特迪瓦是西非最普遍的艾滋病毒流行病之一,估计有五十万人感染艾滋病毒。在整个西非,主要的人群,包括男同性恋者和其他与男性发生性关系的男人,由于特定的获取和传播风险,经常承受着不成比例的艾滋病毒负担。在地方以下国家,对MSM人群的数量进行量化对于确保基于证据的有关HIV预防干预措施的规模和内容的决策至关重要。虽然在科特迪瓦的一些城市中心可以进行基于调查的MSM数量的直接估计,但在其他地区,如果没有任何社区团体基础设施来促进对MSM社区的充分访问,就没有MSM人口规模的数据。该数据用于贝叶斯回归设置中,以估算艾滋病毒响应中优先考虑的科特迪瓦地区MSM数量。我们的层次模型使用地理空间信息来估算缺失的协变量,并允许进行适当的不确定性量化,从而为预测的MSM人口规模估计提供置信区间。该过程提供了没有经验数据的人口规模估计,以指导进一步收集MSM经验数据的优先次序,并为科特迪瓦MSM艾滋病预防和治疗计划的循证扩展提供依据。我们的层次模型使用地理空间信息来估算缺失的协变量,并允许进行适当的不确定性量化,从而为预测的MSM人口规模估计提供置信区间。该过程提供了没有经验数据的人口规模估计,以指导进一步收集MSM经验数据的优先次序,并为科特迪瓦MSM艾滋病预防和治疗计划的循证扩展提供依据。我们的层次模型使用地理空间信息来估算缺失的协变量,并允许进行适当的不确定性量化,从而为预测的MSM人口规模估计提供置信区间。该过程提供了没有经验数据的人口规模估计,以指导进一步收集MSM经验数据的优先次序,并为科特迪瓦MSM艾滋病预防和治疗计划的循证扩展提供依据。
更新日期:2019-01-01
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