LEPR and breast cancer: For LEPR rs4655555, a significant association with decreased breast cancer risk was also identified in the co-dominant genetic model (TT vs. AA, adjusted OR = 0.574, 95% CI = 0.377–0.873, p = 0.009) and recessive model (TT vs. TA + AA, adjusted OR = 0.595, 95% CI = 0.394–0.899, p = 0.014).