IL10 and hepatocellular carcinoma: Overall, Il-10 (-819 T/C) was associated with hepatocellular carcinoma susceptibility under dominant model (OR: 1.25, 95% CI:1.05–1.48, I2 = 15.7%, fixed effect model, 8 studies), and heterozygous model (OR: 1.20, 95% CI: 1.00-1.43, I2 = 0.0%, fixed effect model, 8 studies (Additional File 7).