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. 2021 Jan 21;11:2047. doi: 10.1038/s41598-021-81506-y

Table 1.

Patient characteristics for the Stanford-HCC and TCGA-HCC datasets.

Patient characteristic TCGA-HCC development cohort (n = 299) TCGA-HCC test cohort (n = 53) Stanford-HCC (n = 198)
Training and validation set Internal test set External test set
Age (at surgery) (years) 60 (51, 68) 61 (51, 68) 64 (57, 69)
Gender
Male 206 (69%) 33 (62%) 157 (79%)
Female 93 (31%) 20 (38%) 41 (21%)
Hepatitis B virus infection
Negative 195 (68%) 33 (67%) 147 (74%)
Positive 90 (32%) 16 (33%) 51 (26%)
Unknown 14 4 0
Hepatitis C virus infection
Negative 243 (85%) 41 (84%) 96 (48%)
Positive 42 (15%) 8 (16%) 102 (52%)
Unknown 14 4 0
Alcohol intake
Negative 188 (66%) 30 (61%) 181 (91%)
Positive 97 (34%) 19 (39%) 17 (8.6%)
Unknown 14 4 0
Non-alcoholic fatty liver disease
Negative 271 (95.1%) 44 (90%) 184 (93%)
Positive 14 (4.9%) 5 (10%) 14 (7.1%)
Unknown 14 4 0
AJCC stage grouping
IA 8 (2.7%) 1 (1.9%) 44 (22%)
IB 121 (41%) 24 (46%) 66 (33%)
II 85 (29%) 16 (31%) 68 (34%)
IIIA 60 (20%) 9 (17%) 11 (5.6%)
IIIB 16 (5.4%) 1 (1.9%) 7 (3.5%)
IVA 3 (1.0%) 0 (0%) 2 (1%)
IVB 1 (0.3%) 1 (1.9%) 0 (0%)
Unknown 5 1 0
Largest tumor diameter (mm) 65 (35, 100) 55 (34, 100) 30 (18, 50)
Unknown 5 0 0
Tumor multifocality
Negative 207 (69%) 38 (73%) 142 (72%)
Positive 91 (31%) 14 (27%) 56 (28%)
Unknown 1 1 0
Histologic grade
Well-differentiated 46 (15%) 5 (9.4%) 63 (32%)
Moderately-differentiated 162 (54%) 32 (60%) 108 (55%)
Poorly-differentiated 89 (30%) 16 (30%) 26 (13%)
Undifferentiated 2 (0.7%) 0 (0%) 1 (0.5%)
Microvascular invasion
Negative 196 (67%) 36 (68%) 147 (74%)
Positive 95 (33%) 17 (32%) 51 (26%)
Unknown 8 0 0
Macrovascular invasion
Negative 271 (93%) 49 (92%) 188 (96%)
Positive 21 (7.2%) 4 (7.5%) 8 (4.1%)
Unknown 7 0 0
Surgical margin status
Negative 249 (94%) 45 (88%) 192 (97%)
Positive 17 (6.4%) 6 (12%) 5 (2.5%)
Unknown 33 2 0
Fibrosis stage
0 77 (33%) 13 (30%) 38 (19%)
1 11 (4.8%) 2 (4.5%) 13 (6.6%)
2 25 (11%) 4 (9.1%) 15 (7.6%)
3 26 (11%) 6 (14%) 13 (6.6%)
4 91 (40%) 19 (43%) 119 (60%)
Unknown 69 9 0
Recurrence
No 148 (49%) 28 (53%) 136 (69%)
Yes 151 (51%) 25 (47%) 62 (31%)
Length of follow-up (months) 12 (4, 24) 13 (6, 20) 25 (9, 48)
Risk score 0.07 (− 0.26, 0.30) − 0.31 (− 0.46, − 0.15)

Values presented: median (IQR); n (%).