Table 2 The clinical outcomes of the patients in groups A-B stratified by 35Â years of age
|  |  < 35 years of age |  ≥ 35 years of age | ||||
|---|---|---|---|---|---|---|
Group A | Group B | P | Group A | Group B | P | |
Cycles (n) | 558 | 665 | Â | 165 | 235 | Â |
Pregnancy rate | 44.80 (250/558) | 42.41 (282/665) | 0.400 | 46.06 (76/165) | 33.19 (78/235) | 0.009 |
Live birth rate | 35.48 (198/558) | 31.13 (207/665) | 0.107 | 29.09 (48/165) | 21.28 (50/235) | 0.074 |
 Singleton | 35.30 (197/558) | 30.83 (205/665) | 0.097 | 29.09 (48/165) | 20.85 (49/235) | 0.058 |
 Twin | 0.18 (1/558) | 0.30 (2/665) | 1.000 | 0 (0/165) | 0.43 (1/235) | 1.000 |
Monozygotic twins rate | 1.60 (4/250) | 3.19 (9/282) | 0.235 | 6.58 (5/76) | 2.56 (2/78) | 0.419 |
Early abortion rate | 17.60 (44/250) | 21.63 (61/282) | 0.244 | 31.58 (24/76) | 33.33 (26/78) | 0.816 |
Abortion rate | 19.60 (49/250) | 24.82 (70/282) | 0.149 | 35.53 (27/76) | 35.90 (28/78) | 0.962 |
Ectopic pregnancy rate | 1.20 (3/250) | 1.06 (3/282) | 1.000 | 1.32 (1/76) | 0 (0/78) | 0.494 |