Retrospective Cohort Study
Copyright ©The Author(s) 2023.
World J Gastrointest Oncol. Jun 15, 2023; 15(6): 1036-1050
Published online Jun 15, 2023. doi: 10.4251/wjgo.v15.i6.1036
Figure 1
Figure 1 Overall survival of perihilar cholangiocarcinoma patients in the training and validation cohorts according to the three age-adjusted Charlson comorbidity index groups. Low age-adjusted Charlson comorbidity index (ACCI): 0-1; moderate ACCI: 2-3; high ACCI: ≥ 4. A: Training; B: Validation cohorts. ACCI: Age-adjusted Charlson comorbidity index.