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本文用配对病例对照研究的方法对66对冠心猝死病例及其对照的吸烟情况进行了调查和分析。吸烟者发生冠心猝死的相对危险为2.2,其中小于每日10支的为2.0,大于每日10支的为2.3。
In this paper, the method of paired case-control study of 66 pairs of coronary heart disease cases and control of smoking were investigated and analyzed. The relative risk of death from coronary heart disease in smokers was 2.2, with 2.0 being less than 10 per day and 2.3 being greater than 10 per day.