Table 2.

Mean IIEF-5 scores at baseline and 6-month, 1-year, and 2-year follow-ups

	IIEF-5 total score				P value∗
	Preoperative baseline	6 mo	1 y	2 y	6 mo vs 1 y	1 vs 2 y
Group I	22.4 ± 1.7 (18–25)	10.3 ± 2.3 (5–15)	13.8 ± 3.9 (5–22)	16.1 ± 4.3 (10–24)	.000	.000
Group II	22.2 ± 1.6 (19–25)	9.4 ± 2 (7–13)	12.4 ± 2.8 (8–18)	13.5 ± 2.5 (9–17)	.001	.024
Group III	22.6 ± 2 (16–25)	7 ± 2.2 (5–13)	8.5 ± 3.3 (4–15)	9.4 ± 3 (4–16)	.002	.000
P value†	0.439	0.000	0.000	0.000
Group I vs II‡	0.345	0.152	0.097	0.063
Group I vs III‡	0.237	0.000	0.000	0.000

IIEF-5 = 5-item International Index of Erectile Function.

^∗By Wilcoxon rank sum test.

^†By Kruskal-Wallis test.

^‡By Mann Whitney U-test.