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Association between EMT and miscarriage rate. A threshold, nonlinear association between EMT and miscarriage rate was found (P<0.001) in a generalized additive model (GAM). The solid red line represents the smooth curve fit between variables. Blue bands represent the 95% of confidence interval from the fit. The fitted line adjusted for age, BMI, infertility type, and the number type of embryos transferred, number. of retrieved oocytes, and COS protocols.
