NAMPT and hepatocellular carcinoma: Statistically, the visfatin -1535C>T TT genotype was associated with a decreased risk of HCC compared with the CC/CT genotypes among the Zhuang ethnicity population (TT versus CC: OR = 0.400, 95% CI= 0.208-0.770, P = 0.006; TT versus CT + CC: OR = 0.440, 95% CI = 0.249-0.775, P = 0.004).