H19 and cancer: As shown in Table 4, H19 rs217727 was found to increase cancer risk in overall analysis under T vs C (OR = 1.16, 95% CI = 1.06–1.27, I2 = 75.7), TT vs CC (OR = 1.29, 95% CI = 1.06–1.56, I2 = 71.6), CT vs CC (OR = 1.15, 95% CI = 1.01–1.31, I2 = 75.4), CT + TT vs CC (OR = 1.20, 95% CI = 1.05–1.36, I2 = 76.5), TT vs CT + CC (OR = 1.22, 95% CI = 1.02–1.45, I2 = 70.6).