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Table 2 Local control and overall survival were analyzed by clinical characteristics (univariate analyses)

From: Carbon ion radiotherapy for 80 years or older patients with hepatocellular carcinoma

Factor No. 2y–LC p-value 2y–OS p-value
Child-Pugh classification
 A 27 85.9% 0.544 85.0% 0.034
 B 4 100%   37.5%  
Performance status
 0 17 90.9% 0.589 91.7% 0.015
 1, 2 14 82.5%   64.6%  
MELD score
 6, 7 17 93.3% 0.705 81.8% 0.707
 8 ≤ 14 80.8%   75.5%  
Stage (UICC 7th edition)
 I 24 83.1% 0.866 81.3% 0.762
 II, III 7 100%   71.4%  
Stage (BCLC)
 A, B 14 87.5% 0.498 100% 0.097
 C 17 87.1%   67.2%  
Tumor size
 < 45 mm 14 90.0% 0.387 100% 0.540
 45 mm ≤ 17 86.2%   62.2%  
  1. Abbreviations: 2y–LC = 2-year local control rate, 2y–OS = 2-year overall survival rate, MELD = Model for end-stage liver disease, UICC = Union for International Cancer Control classification, BCLC = Barcelona Clinic Liver Classification