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wei xian du ce liang
Pages: 49-52
Year: Issue:  4
Journal: Occupational Health and Emergency Rescue

Keyword:  险度前瞻性调查暴露组定群调查时间序列计算方法肺癌死亡率计算公式发病概率可信限;
Abstract: <正>一、目的:熟悉几种危险度计算方法及其意义。二、习题: (一)Doll和Hill证明吸烟与肺癌有密切的联系。他们所作的前瞻性调查资料如表1。请计算相对危险度(RR)和特异危险度(AR),并解释其含义。
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