Table 3. Comparison of the IIEF-EF domain scores of the IIEF-EF categories before and after smoking cessation.

IIEF-EF categories (baseline evaluation)	Smoking (+)	Smoking (-)	p
	IIEF-EF domain score (mean±SD)	IIEF-EF domain score (mean±SD)
1) Severe ED (score ≤10) (n=14)	5.2 ± 2.4	8.2 ± 3.9	0.009
2) Moderate ED (score 11-16) (n=19)	12.5 ± 1.0	16.7 ± 3.8	<0.001
3) Mild ED (score 17-25) (n=93)	21.3 ± 2.8	24.9 ± 3.2	<0.001
4) Normal EF (score 26-30) (n=55)	29.5 ± 1.2	29.7 ± 0.8	0.061

IIEF-EF = International Index of Erectile Function-Erectile Function, ED = Erectile dysfunction