Fig. 2

Cubic spline graph of the multivariate-adjusted HRs (represented by the solid line) and 95% CIs (represented by the dotted lines) for the association between drinks per day of alcohol and a HCC (knots: 1, 3, 5, and 7; referent: 0.25) and b ICC (knots: 1, 3, and 5; referent: 0.25) in the Liver Cancer Pooling Project