Multivariable logistic regression analysis on uterine corpus inclination and potential risk factors for pregnancy outcomes in the entire cohort
Multivariable logistic regression analysis of the entire cohort demonstrated that there was a statistically significant difference in CPR between Groups 4 and 1 [adjusted OR 0.501, 95% CI 0.292-0.859 (P < 0.05)], which adjusted for maternal age, BMI, insemination method, outcomes of fresh cycle, number of embryos transferred, embryo stage, and causes of infertility. There were no statistically significant differences in the CPR between Groups 2 and 1 (adjusted OR 0.801, 95% CI 0.465-1.379) or Groups 3 and 1 (adjusted OR 0.806, 95% CI 0.463-1.403). No statistically significant differences were found on SARs (adjusted for maternal age and BMI) and on LBRs (adjusted for maternal age, BMI, insemination method, outcomes of fresh cycle, number of embryos transferred, embryo stage, and causes of infertility) between the four groups (P > 0.05) (Table S1).