Table 1. Clinical features of patients.
| Clinical features | Training cohort (n=2,208) | Test cohort (n=922) |
|---|---|---|
| Age (years) | 73 [66, 79] | 74 [68, 80] |
| Sex | ||
| Male | 1,736 (78.62) | 708 (76.79) |
| Female | 472 (21.38) | 214 (23.21) |
| History of malignancy | ||
| No | 1,662 (75.27) | 664 (72.02) |
| Yes | 546 (24.73) | 258 (27.98) |
| Pathology | ||
| Epithelioid mesothelioma | 1,452 (65.76) | 624 (67.68) |
| Sarcomatoid mesothelioma | 419 (18.98) | 151 (16.38) |
| Biphasic mesothelioma | 337 (15.26) | 147 (15.94) |
| T | ||
| T1 | 696 (31.52) | 322 (34.92) |
| T2 | 496 (22.46) | 182 (19.74) |
| T3 | 409 (18.52) | 147 (15.94) |
| T4 | 607 (27.49) | 271 (29.39) |
| N | ||
| N0 | 1,446 (65.49) | 614 (66.59) |
| N1 | 118 (5.34) | 146 (15.84) |
| N2 | 581 (26.31) | 143 (15.51) |
| N3 | 63 (2.85) | 19 (2.06) |
| M | ||
| M0 | 1,835 (83.11) | 663 (71.91) |
| M1 | 373 (16.89) | 259 (28.09) |
| Surgery | ||
| No | 1,396 (63.22) | 626 (67.90) |
| Yes | 812 (36.78) | 296 (32.10) |
| Radiotherapy | ||
| No | 1,881 (85.19) | 795 (86.23) |
| Yes | 327 (14.81) | 127 (13.77) |
| Chemotherapy | ||
| No | 951 (43.07) | 355 (38.50) |
| Yes | 1,257 (56.93) | 567 (61.50) |
| Survival time (months) | 10 [4, 22] | 8 [3, 16] |
Data are presented as median [interquartile range] or n (%).