. 2022 Mar 2;22:171. doi: 10.1186/s12884-022-04518-0

Table 3.

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

Variables	Live birth				Clinical pregnancy
Variables	OR (95% CI)	P-value	Adjusted OR (95% CI)^a	P-value^a	OR (95% CI)	P-value	Adjusted OR (95% CI)^a	P-value^a
Group
Low-AMH	0.620 (0.504–0.762)	< 0.001	0.910 (0.710–1.166)	0.455	0.616 (0.497–0.763)	< 0.001	0.843 (0.653–1.089)	0.191
Average-AMH	0.840 (0.702–1.006)	0.057	0.943 (0.776–1.148)	0.561	0.788 (0.652–0.953)	0.014	0.863 (0.703–1.060)	0.160
High-AMH	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref
Female age (y)	0.938 (0.921–0.956)	< 0.001	0.958 (0.938–0.978)	< 0.001	0.949 (0.930–0.968)	< 0.001	0.970 (0.950–0.991)	0.005
Female BMI (kg/m²)	1.001 (0.998–1.004)	0.553			1.001 (0.997–1.005)	0.590
Duration of infertility (y)	0.980 (0.953–1.007)	0.148			0.987 (0.959–1.016)	0.383
Total dose of gonadotropin used (IU)¹	0.750 (0.677–0.831)	< 0.001	0.907 (0.804–1.023)	0.111	0.756 (0.680–0.840)	< 0.001	0.900 (0.796–1.018)	0.094
Serum E₂ level (pg/mL) on hCG day²	1.128 (1.074–1.184)	< 0.001	1.035 (0.976–1.099)	0.253	1.079 (1.026–1.135)	0.003	0.971 (0.913–1.032)	0.341
Endometrial thickness (mm) on hCG day	1.088 (1.053–1.124)	< 0.001	1.089 (1.052–1.126)	< 0.001	1.088 (1.052–1.126)	< 0.001	1.088 (1.050–1.127)	< 0.001
No. of oocyte fertilized	1.076 (1.056–1.098)	< 0.001	1.030 (1.004–1.056)	0.022	1.077 (1.055–1.099)	< 0.001	1.043 (1.016–1.070)	0.002
No. of embryos transferred	0.891 (0.780–1.018)	0.089			0.907 (0.790–1.042)	0.168
Embryo type
Cleavage embryo	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref
Blastocyst	2.126 (1.824–2.477)	< 0.001	1.851 (1.567–2.187)	< 0.001	2.095 (1.782–2.462)	< 0.001	1.839 (1.543–2.193)	< 0.001
Embryo quality
Cycle with high-quality embryos	Ref	Ref	Ref	Ref	Ref	Ref	Ref	Ref
Cycles without high-quality embryos	0.309 (0.211–0.453)	< 0.001	0.313 (0.211–0.465)	< 0.001	0.339 (0.239–0.482)	< 0.001	0.341 (0.236–0.491)	< 0.001

Note: All the variables inputted in the model were shown in Table 3. 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, total dose of gonadotropin used, serum E₂ level and endometrial thickness on the day of ovulatory dose of hCG, number of fertilization, embryo type and embryo quality