TNF and Inguinal hernia: Besides, both TFRC and TNF could significantly increase the risk of inguinal hernia (TFRC: IVW: OR [95%]=1.0028 [1.0009 to 1.0046], p = 0.003; TNF: Wald ratio: OR [95%]=1.0009 [1.0 to 1.0019], p = 0.04).