Figure 4.

Association between number of cigarettes smoked per day and AMS scores in middle-aged and elderly men. Association between number of cigarettes smoked per day and (A) total score, (B) sexual score, (C) somatic score, and (D) psychological score in middle-aged and elderly men. Arithmetic mean values were calculated using multiple covariance and adjusting for age (in “overall” analysis only), body mass index, and alcohol intake. Error bars indicate standard error. *P < 0.05, ** P < 0.01, *** P < 0.001 vs. current smokers who smoked <10 cigarettes/day. Regression coefficients were obtained via multiple regression adjusting for age (in “overall” analysis only), body mass index, and alcohol intake and were calculated separately for daily cigarette consumption subgroups, which were ordinally categorized as <10, 10-20, >20 cigarettes/day. *P < 0.05 and ** P < 0.01 for regression coefficients.