Table 1.
Effect of sildenafil on sperm motility parameters. All data reported as adjusted means.
| Parameter | Normal values | Sildenafil | Placebo* | Sildenafil–placebo (95% confidence intervals) |
|---|---|---|---|---|
| Motile (%) | >50 | 60.1 | 60.2 | −0.1 (−5.2, 5.0) |
| Static (%) | <50 | 39.9 | 39.8 | 0.1 (−5.0, 5.2) |
| Rapid (%) | >25 | 37.2 | 39.7 | −2.5 (−6.4, 1.3) |
| Progressive (%) | >15 | 25.9 | 27.4 | −1.5 (−4.5, 1.5) |
| Progressive motility (µm s−1) | >25 | 27.5 | 28.2 | −0.7 (−1.61, 0.20) |
| Mean lateral head | 2.36 | 2.40 | −0.04 (−0.16, 0.08) | |
| displacement (µm) | ||||
*
P = Not significant for all comparisons vs sildenafil.