Fig. 5
From: Nomogram prediction for the prediction of clinical pregnancy in Freeze-thawed Embryo Transfer
Receiver operating characteristic curves of the combined model (incorporate endometrial and sub-endometrial blood flow indicators) and model without blood flow indicators. Model 1: the combined model integrated the number of sub-endometrial blood, FI, RI, PI, age, BMI, type of embryos transferred, the number of embryos transferred and endometrial thickness. Model 2: model without blood flow indicators which only incorporated age, BMI, type of embryos transferred, the number of embryos transferred, endometrial thickness. AUC: area under curve