Lung cancer in men: a model for the relationship between age at diagnosis and smoking habits.
When studying a group of lung cancer cases in a limited period of time to determine the relationship between age at diagnosis and smoking habits, the multiplicity of birth cohorts and the small segment of the life-span distribution of cases observed are confounding and restraining conditions. A model was constructed that suggests that small observed age shifts represent large age shifts in the life-span distributions.
D000367:Age Factors; D000368:Aged; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000453:epidemiology* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D008954:Models, Biological; D012907:Smoking / Q000150:complications