Table 5 Fecundability ratiosa (FR) for couples providing semen samples in comparison with couples not providing semenb.
Number pregnant (row percentage) | FR crude | FR adjusted | 95% CI | ||||
|---|---|---|---|---|---|---|---|
0 – 3 months | 4 – 6 months | 6 – 12 months | > 12 months | ||||
Warsaw | |||||||
- sample | 123 (56) | 23 (10) | 37 (17) | 38 (17) | 1.00 | 1.00 | - |
+sample | 85 (55) | 15 (10) | 23 (15) | 32 (20) | 0.91 | 0.90 | 0.7 – 1.1 |
Kharkiv | |||||||
- sample | 103 (49) | 27 (13) | 27 (13) | 53 (25) | 1.00 | 1.00 | - |
+sample | 44 (46) | 10 (10) | 12 (12) | 31 (32) | 0.87 | 1.02 | 0.8 – 1.4 |
Greenland | |||||||
- sample | 205 (60) | 33 (10) | 50 (15) | 53 (16) | 1.00 | 1.00 | - |
+sample | 89 (50) | 28 (15) | 35 (20) | 27 (15) | 0.89 | 0.88 | 0.7 – 1.1 |
All | |||||||
- sample | 431 (56) | 83 (11) | 114 (15) | 144 (19) | 1.00 | 1.00 | - |
+sample | 218 (51) | 53 (12) | 70 (16) | 90 (21) | 0.89 | 0.91 | 0.80 – 1.04 |