However, there were no significant differences in the age, BMI, FBG, serum insulin level, serum P and E2 levels on the day of progesterone administration, PI, S/D, endometrial thickness, transferred embryos, implantation rate, clinical pregnancy rate, and miscarriage rate (all P > 0.05) except RI (P = 0.002) between the hyperlipidemia and control groups. Here, INS is linked to hyperlipidemia.