Skip to main content

Advertisement

Table 3 Positive response to global question about improved erections

From: Sildenafil (Viagra) for male erectile dysfunction: a meta-analysis of clinical trial reports

   Number (%) with outcome  
Dosing (mg) Number of trials Sildenafil Placebo Relative benefit (95% CI) NNT (95% CI)
25 3 192/312 (62) 114/426 (27) 2.3 (1.9 to 2.8) 2.8 (2.4 to 3.5)
50 5 378/511 (74) 153/607 (25) 3.0 (2.6 to 3.5) 2.1 (1.9 to 2.3)
100 5 415/506 (82) 153/607 (25) 3.3 (2.9 to 3.8) 1.8 (1.6 to 1.9)
200 2 152/191 (80) 39/181 (22) 3.7 (2.8 to 5.0) 1.7 (1.5 to 2.0)
Dose optimised 5 411/517 (79) 111/524 (21) 3.8 (3.2 to 4.5) 1.7 (1.6 to 1.9)