Cigarette smoking and male lung cancer risk with special regard to type of tobacco.

Results Lung cancer risk increased with cigarette consumption and duration of the habit. After adjusting for lifetime cigarette consumption and for socioeconomic level, LC risk was greater among black tobacco smokers than among exclusive blond tobacco smokers (OR = 5.0, 95% CI : 2.0‐12.7); LC risk among long-term (>20 years) filter-tipped cigarette users was lower compared to all other smokers (OR = 0.4, 95% CI : 0.2‐0.7). Conclusions The main results of the study (a higher LC risk among black tobacco users than in exclusive blond tobacco users, and a lower LC risk among long-term filtertipped cigarette smokers than all other smokers) have been consistent with previous case-control studies and with ecologic studies which took into account past exposure levels.