文章摘要
吕筠,何平平,李立明.复杂抽样调查数据实例分析[J].中华流行病学杂志,2008,29(8):832-835
复杂抽样调查数据实例分析
Data analysis from surveys using complex sampling methods
投稿时间:2008-02-18  
DOI:
中文关键词: 复杂调查数据;权重;抽样误差;假设检验
英文关键词: Complex survey data; Weight;Sampling error;Hypothesis testing
基金项目:国家自然科学基金资助项目(30571608)
作者单位E-mail
吕筠 100083北京大学公共卫生学院流行病与卫生统计学系 lmlee@pumc.edu.Cn 
何平平 100083北京大学公共卫生学院流行病与卫生统计学系  
李立明 100083北京大学公共卫生学院流行病与卫生统计学系  
摘要点击次数: 724
全文下载次数: 803
中文摘要:
      提出复杂抽样调查数据的分析思路和方法以及忽视权重和抽样设计时会出现的问题。文中以2002年中国居民营养与健康状况调查数据中高血压患病率的估算为例,分加权和不加权、考虑和不考虑整群设计特征的四种组合情况对数据进行分析。表明忽视权霞的设置会影响点估计和标准误的估计,忽视对整群设计特征的考虑不仅会高估结果<\b>的精确度,还会得到地区间患病率有差异的假阳性结论<\b>。因此使用合理的统计方法分析复旁抽样调香数据非常有必要。
英文摘要:
      To present statistical methods on appropriate data analysis from complex surveys and errors arising from ignorance of weights or design of samples. We took Chinese National Nutrition and Health Survey in 2002 as an example to analyze the prevalence of hypertension among population aged 15 and over. We used four combinations of analyses, including with or without weighting or considering sample designs. If weights is omitted, it would result in biased prevalence estimates and also influence the estimates of standard errors. While omitting sample designs would result in underestimating the standard error estimates and then testing the false positive hypothesis. Through appropriate analysis, we found Chinese people in large-sized cities had the highest prevalence of hypertension (28.77%, 95% CI: 25.69%-31.84% ) while people in the poorest rural area having the lowest prevalence of hypertension ( 14.21%, 95 % CI : 12.64%- 15.79% ). The prevalence of hypertension among people in small and medium-sized cities and other rural areas ranged from 20.48 % to 24.37 % with statistically insignificant difference. It is necessary to use appropriate methods to analyze data from complex surveys.
查看全文   Html全文     查看/发表评论  下载PDF阅读器
关闭