Epidemiological Study on Lung Cancer in 31 Factories of Shenyang City

Objective To study the epidemiology of lung cancer in 31 factories workers of Shenyang city form 1970 to 1994.Results Incidence rate of lung cancer were betw een 19.4/105 and 52.9/105 fro m 1979 to 1994,and was the highest (52.9/105)in 1990;male was significantly higher than female.Morality rate of lung cancer of male were between 22.9/105 and 58.9/105 from 1979 to 1994,and was the highest(58.9/105)in 1990;femal were between 7.6/105 and 28.7/105,and was the highest(28.7/105)in 1987;male was significantly higher than female.The survival rates of lung cancer were 8.3% for 3 years,5.3% for 5 years,3.2% for 8 years and 1.3% for 10 years.The centre classifcation was the highest(67.0%)in 3 dukes stages of lung cancer.The squamous cell carcinoma of male was the highest (50.9%)in 4 histological classifcations of lung cancer,and the ademocarcinoma of female was the highest(67.9%).The incidence age of 4 histological classifcations of lung cancer reached high peak in age of 55 to 64 years,and the persents were 44.5% for squamous cell carcinoma,47.2% for adenocarinoma,50.0% for small cell cancer and 35.7% for large cell cancer.