比率法确定铁路家属人数的多阶段抽样调查估计  

A Multistage Sampling Survey for Quantitatively Determining the Family Members of The Railway Staff and Workers

作　　者：刘瑶[1,2] 恽振先[1,2] 陈瑞祥[1,2] 

机构地区：[1]南京铁路分局中心卫生防疫站 [2]南京铁道医学院预防医学系统计教研室

出　　处：《南京铁道医学院学报》1997年第4期254-255,共2页Journal of Nanjing Railway Medical College

摘　　要：目的：在南京铁路分局辖区开展铁路职工及家属人口资料的抽样调查，以便获取铁路糸统传染病监测对象的准确人口资料。方法：应用按比例抽样原理，建立三级抽样框，抽样比为１５％的问卷抽样调查。结果：职工与家属人数比率为０．７５１８，标准差为０．０１１，并得出职工及家庭的性别比及年龄构成比。结论：本次调查搜集的人口资料，对开展铁路糸统传染病的流行病学分析有重要价值。bjective:A multistage sampling survey of population data within the staff and workers of Nanjing Regional Railway Administration was done to obtain an exact population data for monitoring infectious diseases.Method:According to the principle of proportional allocation,a three-stage sampling survey was set up.A questionnaire was used with a sampling ratio of 15%.Result:The ratio of railway staff and workers to their family members was found to be 0.7518±0.011.A sex- and age-constituent ratio of the staff and workers to their family members was calculated.Conclusion:The population data collected in this study is valuable to the epidemiologic analysis of infections diseases.

关 键 词：比率估计 多阶段抽样 人口资料 

分 类 号：R195.1[医药卫生—卫生统计学]