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本课题对重庆市原发性肺癌病例作了1：2配对研究，探讨肺癌发病的危险因素。结果支持吸烟与肺癌的联系，在女性中被动吸烟是重要的危险因素，并发现精神因素在男女两组都是不可忽视的危险因子；慢支与肺癌仍然有密切的关系。同时揭示城市中居住条件的改善，特别注意厨房通风条件，减少居室微小气候的污染，是防止肺癌发生的重要环节。
This study has conducted a 1:2 paired study on primary lung cancer in Chongqing to explore the risk factors for lung cancer. The results support the link between smoking and lung cancer. Passive smoking in women is an important risk factor, and it is found that mental factors are both non-negligible risk factors in both men and women; chronic support and lung cancer are still closely related. At the same time, it reveals the improvement of living conditions in the city, paying particular attention to the ventilation conditions in the kitchen and reducing the microclimate pollution in the living room. It is an important link in preventing the occurrence of lung cancer.