Figure 1.

Survival of patients with gallbladder cancer at different stages according to the Union for International Cancer Control 8th edition Tumor-Node-Metastasis classification. Differences in the survival of patients between stage I and other stages were significant (all P<0.05), as well as the differences between patients of stage IV and the other stages (all P<0.001). Comparisons of the survival between stage IIa and stage IIb patients, and stage IIIa and stage IIIb patients were also significant (P=0.041 and P=0.011, respectively), whereas the difference between the survival of stage IIb and stage IIIa patients was not statistically significant (P=0.198).