Table 8.

Comparison of continuous efficacy results for sildenafil, tadalafil, and vardenafil

	Sildenafil (50/100 mg)				Tadalafil (10/20 mg)				Vardenafil (10/20 mg)
		Number of				Number of				Number of
Outcome	Dose	Trials	Patients	Weighted mean	Dose	Trials	Patients	Weighted mean	Dose	Trials	Patients	Weighted mean
Percentage successful attempts	placebo	16	1448	23	placebo	6	388	26	placebo	7	996	28
	50/100	16	1589	65	10/20	6	1047	62	10/20	7	1789	59
Erectile function domain score	placebo	23	1870	14.0	placebo	6	388	14.6	placebo	7	996	14.0
	50/100	23	1893	22.0	10/20	6	1047	22.3	10/20	7	1789	20.1
EF domain change	placebo	23	1870	2.7	placebo	7	459	0.8	placebo	7	996	1.3
	50/100	23	1893	10.1	10/20	7	1192	8.4	10/20	7	1344	8.3