| control group | PCOS group | OR (95% CI) | P-value |
---|---|---|---|---|
n | 336 | 336 | / | Â |
Female age (year) | 30, 7 | 30, 5 | / | 0.684 |
BMI (kg/m2) | 21.6, 4.1 | 21.6, 3.8 | / | 0.928 |
      < 24 | 75.9% | 75.6% |  |  |
      ≥ 24 | 24.1% | 24.4% |  |  |
Endometrial preparation |  |  | / |  < 0.001 |
     HRT cycles | 59.5% (200/336)a | 75.6% (254/336)b |  |  |
     NCs | 36.3% (122/336)a | 8.3% (28/336)b |  |  |
     LE cycles | 1.2% (4/336)a | 12.2% (41/336)b |  |  |
     GnRH-a cycles | 3.0% (10/336)a | 3.9% (13/336)a |  |  |
Trophectoderm grade | Â | Â | / | 0.143 |
     A | 32.4% | 25.9% |  |  |
     B | 64.0% | 69.0% |  |  |
     C | 3.6% | 5.1% |  |  |
     Miscarriage rate |  |  | / | 0.040 |
     early miscarriage rate | 13.7% (46/336)a | 14.0% (47/336)a |  |  |
     late miscarriage rate | 0.6% (2/336)a | 3.3% (11/336)b |  |  |
     Pregnancy complications rate | 19.9% | 25.6% | 1.38 (0.96–1.99) | 0.080 |
     Preterm birth rate | 7.1% | 10.7% | 1.56 (0.91–2.68) | 0.105 |
     Live birth rate | 84.2% | 79.5% | 0.73 (0.49–1.08) | 0.109 |
Neonatal weight | Â | Â | / | Â |
     male infant | 3345, 613 | 3300, 600 |  | 0.219 |
     female infant | 3200, 550 | 3150, 625 |  | 0.169 |