Weighed and adjusted prevalence ratios for CHIKV seropositivity (w/a PR) according to sociodemographic, environmental and attitude factors.

Model 1 includes all covariates, model 2 sociodemographic variables, and model 3 variables related to knowledge /attitudes in arboviral prevention and control and environment/housing factors.模型1纳入全部协变量；模型2纳入社会人口学变量；模型3纳入与虫媒病毒（Arboviral）防控相关的知识、态度变量，以及环境与住房相关因素。