title: Studies on smoking, chronic nonspecific respiratory diseases, and lung cancer in selected territories of Czechoslovakia.
abstract: Results of epidemiological studies in selected territories of Czechoslovakia confirmed the important role of cigarette smoking as a risk factor of chronic bronchitis and lung cancer. Surveys in Kolin-District, in Prague, and Zatec revealed that the prevalence of chronic bronchitis for adult male smokers was 3--4 times, for adult female smokers twice higher than for the nonsmokers of the respective age and sex. The risk of developing lung cancer in male smokers aged 40--64 years who had smoked a total amount of 200,000 cigarettes and over was approximately 50 times higher than for nonsmokers. The smoking related respiratory diseases represent a serious medical, social, and economic problem. Their prevention carried out by various approaches, including effective smoking control measures, is an important task.
mesh_terms: D000328:Adult; D000367:Age Factors; D001991:Bronchitis / Q000453:epidemiology; D003604:Czechoslovakia; D005260:Female; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000453:epidemiology*; D008175:Lung Neoplasms / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D012737:Sex Factors; D012907:Smoking / Q000150:complications*; D000074606:Smoking Prevention