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Table 4 Relapse-free survival of the patients according to Renji nomogram and AJCC staging system

From: Risk stratification system to predict recurrence of intrahepatic cholangiocarcinoma after hepatic resection

Staging system n (%) Relapse-free survival (%)
CB Events 1-year 3-year 5-year C-index
Renji nomogram        0.71
 Grade 1 10 (9.4) 9 1 90.0 87.5 75.0  
 Grade 2 27 (25.5) 14 13 66.7 40.0 27.8
 Grade 3 21 (19.8) 5 16 33.3 15.8 5.9
 Grade 4 48 (45.3) 3 45 16.7 2.2 0
AJCC        0.66
 Grade 1 33 (31.1) 20 13 72.7 55.6 40.9  
 Grade 2 15 (14.2) 5 10 46.7 16.7 0
 Grade 3 10 (9.4) 2 8 20.0 11.1 11.1
 Grade 4 48 (45.3) 4 44 18.8 2.2 0
  1. AJCC American Joint Committee on Cancer, CB censored subjects