Table 1 Characteristics of the patients with NSCLC.
Characteristics | Discovery cohort (n = 83) | Validation cohort (n = 49) |
|---|---|---|
Age—yr | ||
Median | 62 | 62 |
Range | 39–88 | 34–82 |
Gender no. (%) | ||
Male | 68 (81.9) | 37 (75.5) |
Female | 15 (18.1) | 12 (24.5) |
ECOG performance-status score—no. (%) | ||
0 | 0 (0) | 2 (4) |
1 | 74 (89.2) | 39 (79.6) |
≥ 2 | 9 (10.8) | 8 (16.4) |
Tumor histologic type—no. (%) | ||
Adenocarcinoma | 48 (57.8) | 25 (51) |
Squamous cell carcinoma | 26 (31.3) | 13 (26.5) |
Others | 9 (10.9) | 11 (22.5) |
PD-L1 expression level – no. (%) | ||
< 1% | 15 (18) | 8 (16.3) |
≥ 1% | 57 (68.7) | 27 (55.1) |
Unknown | 11 (13.3) | 14 (28.6) |
