GJB1 and hepatocellular carcinoma: Moreover, univariate analysis showed that poor differentiation (P = 0.042), positive HBsAg status (P = 0.034) and high Cx32 expression (P = 0.001) were significantly correlated with poor OS (Additional file 2: Table S2), and multivariate analysis indicated that high Cx32 expression (P = 0.001) was an independent predictor of poor prognosis in HCC patients (Additional file 2: Table S3).