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根据1976～1979年鼓楼区人口死亡登记资料,选出确诊为肺癌的死亡病例作为调查对象,同时配对选择对照死亡病例,经过调查,确定98对作统计分析。肺癌病例均为市级以上医院经 X 线或病理确诊的原发性肺癌,对照病例以脑溢血死亡为多。结果分析:在98对中,吸烟与否对肺癌的影响有非常显著意义(X~2=7.36,P<0.01),吸烟者患肺癌的相对危险性为2.38。吸烟患肺癌的相对危险性随
According to the 1976-1979 Drum Tower District population death registration data, selected deaths diagnosed as lung cancer were selected as the survey subjects, and matched and matched control deaths were found. After investigation, 98 pairs were determined for statistical analysis. The cases of lung cancer were primary lung cancers diagnosed by X-ray or pathology in hospitals at or above the municipal level. Control cases had more brain haemorrhage deaths. Analysis of results: Among the 98 pairs, the effect of smoking on lung cancer was very significant (X~2=7.36, P<0.01). The relative risk of lung cancer among smokers was 2.38. The relative risk of lung cancer in smoking increases