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Table 3 Points per unit of linear predictor for RFS of ICC

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

Grade HBsAg Tumor size CP score LNM Risk index Risk index range Estimated RFS
3-year 5-year
1 Positive ≤ 5 cm A Absent 0 0 – 53 0 – 46 50% – 100%
2-1 Positive > 5 cm A Absent 54 54 – 95 47 – 89 30% – 50%
2-2 Negative ≤ 5 cm A Absent 55
2-3 Positive ≤ 5 cm A Present 64
3-1 Positive ≤ 5 cm B Absent 100 96 – 117 90 – 111 20% – 30%
3-2 Negative > 5 cm A Absent 109
4-1 Positive > 5 cm A Present 118 118 – 273 112 – 273 0% – 20%
4-2 Negative ≤ 5 cm A Present 119
4-3 Positive > 5 cm B Absent 154
4-4 Negative ≤ 5 cm B Absent 155
4-5 Positive ≤ 5 cm B Present 164
4-6 Negative > 5 cm A Present 173
4-7 Negative > 5 cm B Absent 209
4-8 Positive > 5 cm B Present 218
4-9 Negative ≤ 5 cm B Present 219
4-10 Negative > 5 cm B Present 273
  1. RFS relapse-free survival, ICC intrahepatic cholangiocarcinoma, HBsAg hepatitis B surface antigen, CP: Child-Pugh, LNM lymph node metastasis