Table 1 Patient characteristics across different cohorts
Characteristics | TCGA (n = 143) | CPTAC (n = 59) | Center A (n = 158) | External validation (n = 42) |
|---|---|---|---|---|
Age (years), mean ± SD | 64.69 ± 10.94 | 65.00 ± 10.90 | 62.99 ± 10.23 | 64.90 ± 10.89 |
Gender, n (%) | ||||
 Female | 67 (46.9) | 30 (50.8) | 58 (36.7) | 21 (50.0) |
 Male | 76 (53.1) | 29 (49.2) | 100 (63.3) | 21 (50.0) |
 BMI (kg/m²), mean ± SD | - | 25.92± 4.47a | 22.39 ± 3.36 | 21.79 ± 3.42 |
Location of lesion, n (%) | ||||
 Head | 109 (76.2) | 51 (86.4) | 121 (76.6) | 26 (61.9) |
 Body or tail | 19 (13.3) | 7 (11.9) | 37 (23.4) | 16 (38.1) |
 Overlapping | 1 (0.7) | 0 (0) | 0 (0) | 0 (0) |
 Unknown | 14 (9.8) | 1 (1.7) | 0 (0) | 0 (0) |
T Stage, n (%) | ||||
 T1 | 4 (2.8) | 0 (0) | 36 (22.8) | 3 (7.1) |
 T2 | 17 (11.9) | 10 (16.9) | 97 (61.4) | 28 (66.7) |
 T3 | 118 (82.5) | 41 (69.5) | 25 (15.8) | 10 (23.8) |
 T4 | 3 (2.1) | 3 (5.1) | 0 (0) | 1 (2.4) |
 Tx | 0 (0) | 1 (1.7) | 0 (0) | 0 (0) |
 Unknown | 1 (0.7) | 4 (6.8) | 0 (0) | 0 (0) |
N Stage, n (%) | ||||
 N0 | 37 (25.9) | 7 (11.9) | 98 (62.0) | 24 (57.1) |
 N1 | 105 (73.4) | 41 (69.5) | 45 (28.5) | 15 (35.7) |
 N2 | 0 (0) | 7 (11.9) | 15 (9.5) | 3 (7.1) |
 Nx | 1 (0.7) | 1 (1.7) | 0 (0) | 0 (0) |
 Unknown | 0 (0) | 3 (5.1) | 0 (0) | 0 (0) |
M Stage, n (%) | ||||
 M0 | 66 (46.2) | 45 (76.3) | 158 (100) | 39 (92.9) |
 M1 | 3 (2.1) | 3 (5.1) | 0 (0) | 3 (7.1) |
 Mx | 74 (51.7) | 9 (15.3) | 0 (0) | 0 (0) |
 Unknown | 0 (0) | 2 (3.4) | 0 (0) | 0 (0) |
