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Reproducibility and validity of a food frequency questionnaire among YTC miners

云锡矿工食物频率问卷的信度和效度研究

The YTC will be lower if the reverse is true .

云锡将降低，如果情况正好相反。

The Cohort Study on Intake of Alcohol and Lung Cancer Risk in the Yunnan Tin Corporation ( YTC ) Miners

酒精摄入量与云锡（YTC）矿工肺癌的队列研究

Methods Fitting Excessive Relative Risk Models , Absolutive Excessive Risk Model , and so on to the YTC cohort data .

方法拟合超额相对危险度模型，绝对超额危险度模型，非标准模型等分析云锡现场队列研究资料。

Objective : To study the relationship between consumption of vegetables and carotenoids and lung cancer risk in Yunnan Tin Corporation ( YTC ) miners .

目的：了解食用蔬菜与云南锡业公司（云锡，YTC）矿工肺癌危险性的关系。

Methods : Poisson regression models and the classification tree statistical model were applied to the analysis of data derived from a high risk cohort of lung cancer among YTC tin miners .

方法：应用Poisson回归和树型分类分析在云锡肺癌现场建立的高危人群队列资料。

This paper is to give a systematic introduction to the technology used by YTC , including development pattern , minin method , hydromining equipment , hydraulic transport and auxiliary operations .

本文就云南锡业公司水力机械化开采从开拓形式、采矿方法、水采设备、水力运输以及辅助作业等方面作了较为系统的介绍。

This poper evaluated the reproducibility and validity of a food frequency questionnaire ( FFQ ) used in a prospective study among Yunnan Tin Corporation ( YTC ) miners .

本文研究了云锡矿工肺癌高危人群普查中所使用的食物频率问卷（FoodFrequencyQuestionnaire，FFQ）的信度和效度。