Table 5.

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

Variables	Live birth				Clinical pregnancy
	OR (95% CI)	P-value	Adjusted OR (95% CI)a	P-valuea	OR (95% CI)	P-value	Adjusted OR (95% CI)a	P-valuea
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

Note: All the variables inputted in the model were shown in Table 5. BMI Body mass index, CI Confidence interval, OR Odds ratio, E₂ Estradiol, hCG human chorionic gonadotropin, Ref Reference, ¹ per 1000 IU increased, ² per 1000 pg/mL increased

^aAdjusted for maternal age, endometrial thickness on the day of ovulatory dose of hCG, number of fertilization, number of embryos transferred, embryo type and embryo quality