Table 2 Characteristics of the patients in different risk groups
Characteristics | TCGA-LIHC cohort | ICGC-LIRP-JI cohort | ||||
|---|---|---|---|---|---|---|
High risk | Low risk | P value | High risk | Low risk | P value | |
Age | ||||||
 ≤ 65 | 118 (69.01%) | 101 (60.12%) | 0.1102 | 67 (38.95%) | 22 (37.29%) | 0.9428 |
 > 65 | 53 (30.99%) | 67 (39.88%) |  | 105 (61.05%) | 37 (62.71%) |  |
Gender | ||||||
 Female | 54 (31.58%) | 54 (32.14%) | 1 | 49 (28.49%) | 12 (20.34%) | 0.2918 |
 Male | 117 (68.42%) | 114 (67.86%) |  | 123 (71.51%) | 47 (79.66%) |  |
Grade | ||||||
 G1 + 2 | 87 (50.88%) | 125 (74.4%) | < 0.001 | NA | NA | NA |
 G3 + 4 | 84 (49.12%) | 43 (25.6%) |  | NA | NA | NA |
Stage | ||||||
 Stage I–II | 121 (70.76%) | 134 (79.76%) | 0.0729 | 96 (55.81%) | 45 (76.27%) | 0.0086 |
 Stage III–IV | 50 (29.24%) | 34 (20.24%) |  | 76 (44.19%) | 14 (23.73%) |  |