Variable | Sildenafil plus low-dose aspirin (n = 200) | Low-dose aspirin only (n = 200) | P-value* | |||
N | % | N | % | |||
Parity | P0 | 29 | 14.5% | 39 | 19.5% | 0.297 |
P1 | 49 | 24.5% | 49 | 24.5% | ||
P2 | 59 | 29.5% | 54 | 27.0% | ||
P3 | 35 | 17.5% | 33 | 16.5% | ||
P4 | 26 | 13.0% | 22 | 11.0% | ||
P5 | 2 | 1.0% | 3 | 1.5% | ||
Previous miscarriages | Nil | 76 | 38.0% | 64 | 32.0% | 0.082 |
1 Miscarriage | 98 | 49.0% | 98 | 49.0% | ||
2 Miscarriages | 26 | 13.0% | 38 | 19.0% |