固定效应模型与混合效应模型在测量误差估计中的应用 |
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引用本文: | 姚树祥,巫秀美,倪宗瓒,乔友林,姜勇.固定效应模型与混合效应模型在测量误差估计中的应用[J].中国公共卫生,2000,16(11):1011-1012. |
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作者姓名: | 姚树祥 巫秀美 倪宗瓒 乔友林 姜勇 |
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作者单位: | 1. 云南锡业公司防护劳动研究所个旧661000 2. 华西医科大学卫生统计学教研室 3. 中国预防科学院肿瘤研究所 |
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基金项目: | 本课题为国家自然科学基金资助项目 |
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摘 要: | 探讨疾病危险因素暴露剂量的测量误差评价方式,以云南锡业公司所属锡矿井下作业环境有害物质监测资料为例,分别进行固定效应和混合效应的方差成分模型拟合,估计资料的测量误差大小,固定疚伯方差分析结果显示氡、氡子体和粉尘的测量信度均接近1,混合效应模型也显示资料的测量质量较佳(信度系数估计值均〉0.8)。提示固定效应模型和混合效应模型均可应用于测量质量的评价,应用根据资料的特性选择正确的统计模型,以得到较为
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关 键 词: | 有害物质 测量误差 固定效应模型 混合效应模型 |
修稿时间: | 1999年7月12日 |
The Application of Fix-effect and Mixed-effect Models to the Mesurement Error Estimation |
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Abstract: | To investigate on statistical methods for the assessment of ex-posure measurement erorr. Concentratoins of radon, radon daugh-ters and dust in underground mines measured by the Labor Protec-tion Institute of Yunnan Tin Cooperation as an example, a fixed-effect model and a mixed-effect model were fitted to calculated thereliability coeffcients. All of the estimated reliability coefficientswere close to 1, which showed that the data were under well con-trolled. It indicats that both fixed-effect and mixed-effct modelscould work as useful methods for the assessment of measurementerror, if applying with caution. |
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Keywords: | Measurement errors Fixed-effect model Mixed-effect model Variance component model |
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