Table 1.

Baseline characteristics of tadalafil 5-mg and placebo patients

	Tadalafil 5 mg (N = 27)	Placebo (N = 28)	P*
Age, years, mean (SD)	30.4 (3.8)	30.4 (3.8)	0.941
Smoker, n (%)	14 (51.9)	14 (50)	0.553
Duration of PE, years, mean (SD)	5.8 (2)	5.9 (2.4)	0.109
Number of children, mean (SD)	2.1 (1)	1.9 (1.1)	0.705
Frequency of intercourse/week, mean (SD)	2.6 (0.9)	2.4 (0.9)	0.653
Baseline IELT, s, mean (SD)	45.7 (9.1)	43.2 (12.1)	0.127
Baseline PEDT score, mean (SD)	14.7 (2.4)	14.2 (3.2)	0.128

*Independent t-test.