| 血吸虫病流行区居民感染率的估计和误差计算 |
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| 引用本文： | 陈启明 袁鸿昌. 血吸虫病流行区居民感染率的估计和误差计算[J]. 中国血吸虫病防治杂志, 1998, 10(5): 263-266 |
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| 作者姓名： | 陈启明 袁鸿昌 |
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| 作者单位： | 上海医科大学公共卫生学院!上海200032 |
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| 摘 要： | 根据血吸虫病流行区居民感染率调查的现行模式，介绍了在分层多阶段抽样的抽样方式下，居民血吸虫感染率的估计和误差计算；证明了单指标的多次分层抽样率的估计和误差计算与按多指标的一次分层抽样率的估计和误差计算等价；指出了与抽样条件和抽样效果有关的可能的近似处理；结合举例数据，说明了有关公式和计算方法的具体应用。
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| 关 键 词： | 分层抽样 整群抽样 多阶段抽样 率 误差 估计 |
ESTIMATION OF PREVALENCE AND IT''S VARIANCE COMPUTATION IN SCHISTOSOMA AREA |
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| Chen Qiming,Yuan Hongchang,Cao Suhua,Zhao Genming. ESTIMATION OF PREVALENCE AND IT''S VARIANCE COMPUTATION IN SCHISTOSOMA AREA[J]. Chinese journal of schistosomiasis control, 1998, 10(5): 263-266 |
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| Authors: | Chen Qiming Yuan Hongchang Cao Suhua Zhao Genming |
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| Abstract: | In this paper, the estimation of prevalence and it's variance calculating are discussed when clustering sampling,multistage sampling and stratified sampling being used simultane ously. The equivalence of simple stratified sampling with multi indexes to multi stratified sampling with single index is shown. The application of the obtained results to practical ma terial is illustrated. |
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| Keywords: | clustering sampling multistage sampling stratified sampling prevalence variance estimation |
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