| Table 1. Pregnancy rates and patient characteristics | ||||
| Clinical pregnancy | Positive | Negative | Total | p |
| Age <40 years ≥40 years |
54 2 |
281 44 |
335 46 |
0.043 |
| Endometrium thickness <8 mm ≥8 mm |
6 50 |
83 242 |
89 292 |
0.016 |
| Sperm Frozen Fresh |
1 55 |
10 315 |
11 370 |
0.71 |