Method s Among 274 families ,808 individuals were surveyed by stratified-clu ster random sampling in the rural area in Wudang town, and an ananlysis was perf ormed about the health status of rural families.
英
美
- 方法 :采用分层整群随机抽样方法 ,对武当山镇 2 74户家庭共 80 8个农村居民进行了家庭健康的抽样调查。