Numbers Assessed, Screened, Number of Actual Cases, and Back-Weighted Cases to Total Population by Sampling Strategy and CentreOnly Individuals Seen at Both Prevalence and Incidence Phase

Numbers Assessed, Screened, Number of Actual Cases, and Back-Weighted Cases to Total Population by Sampling Strategy and CentreOnly Individuals Seen at Both Prevalence and Incidence Phase按抽样策略与研究中心划分的、对应总人口口径的被评估人数、筛查人数、实际病例数及回溯加权病例数（Back-Weighted Cases）；仅纳入在患病率调查阶段与发病随访阶段（Prevalence and Incidence Phase）均接受观测的个体。