TLR4 and inflammatory bowel disease: Subgroup analysis based on IBD types suggested that the TLR4 rs4986790A>G polymorphism conferred an increased risk of both UC and CD (CD: allele model: OR = 1.242, 95% CI = 1.053~1.489, and P = 0.011; dominant model: OR = 1.247, 95% CI = 1.039~1.497, and P = 0.018; UC: allele model: OR = 1.283, 95% CI = 1.085~1.518, and P = 0.004; dominant model: OR = 1.233, 95% CI = 1.030~1.475, and P = 0.023) (Figures 3(c) and 3(d)).