IL6 and endometrial cancer: IL6 is positively associated with endometrial cancer risk in the obese population (ORQ4 vs. Q1 = 3.979, 95% CI 1.184–13.375, p = 0.026), while the same is not true when the entire population is considered (ORQ4 vs. Q1 = 0.471, 95% CI 0.301–0.736, p = 0.001; adjusted p = 0.007).