Table 5 Logistic regression analysis on the contribution of the potential predicting variables to live birth and clinical pregnancy outcomes of PCOS patients

Group

 Low-AMH

1.440 (0.830–2.500)

0.195

1.370 (0.750–2.502)

0.306

1.123 (0.627–2.012)

0.696

1.016 (0.544–1.901)

0.959

 Average-AMH

1.147 (0.713–1.845)

0.571

1.045 (0.630–1.734)

0.863

1.318 (0.790–2.199)

0.290

1.225 (0.717–2.093)

0.459

 High-AMH

Ref

Ref

Ref

Ref

Ref

Ref

Ref

Ref

Female age (y)

0.955 (0.904–1.009)

0.098

0.928 (0.872–0.986)

0.017

0.957 (0.902–1.016)

0.149

0.934 (0.875–0.998)

0.043

Female BMI (kg/m²)

1.002 (0.996–1.007)

0.583

1.003 (0.980–1.026)

0.809

Duration of infertility (y)

0.985 (0.912–1.063)

0.696

1.000 (0.920–1.087)

0.999

Total dose of gonadotropin used (IU)¹

1.035 (0.802–1.335)

0.794

1.100 (0.828–1.460)

0.511

Serum E₂ level (pg/mL) on hCG day²

1.212 (1.066–1.379)

0.003

1.103 (0.963–1.263)

0.158

Endometrial thickness (mm) on hCG day

1.104 (1.008–1.209)

0.034

1.094 (0.990–1.208)

0.077

1.078 (0.977–1.191)

0.135

1.064 (0.958–1.183)

0.248

No. of oocyte fertilized

1.054 (1.002–1.108)

0.042

1.014 (0.960–1.071)

0.626

1.057 (1.001–1.117)

0.046

1.011 (0.954–1.071)

0.711

No. of embryos transferred

0.907 (0.591–1.391)

0.654

1.916 (1.094–3.358)

0.023

0.860 (0.538–1.373)

0.527

1.871 (1.007–3.476)

0.048

Embryo type

 Cleavage embryo

Ref

Ref

Ref

Ref

Ref

Ref

Ref

Ref

 Blastocyst

2.747 (1.812–4.164)

 < 0.001

3.488 (2.023–6.013)

 < 0.001

2.790 (1.742–4.468)

 < 0.001

3.659 (1.970–6.795)

 < 0.001

Embryo quality

 Cycle with high-quality embryos

Ref

Ref

Ref

Ref

Ref

Ref

Ref

Ref

 Cycles without high-quality embryos

0.158 (0.034–0.742)

0.019

0.172 (0.035–0.841)

0.030

0.332 (0.099–1.110)

0.073

0.423 (0.120–1.488)

0.180