Table 1.
Patient characteristics
| Active BM (n = 24) | No active BM (n = 173) | P‐value | |
|---|---|---|---|
| Age, median (range) | 66.5 (41–83) | 67 (27–82) | 0.495 |
| Sex | |||
| Male | 13 (54%) | 122 (71%) | 0.157 |
| Female | 11 (46%) | 51 (29%) | |
| Performance status | |||
| 0, 1 | 15 (62%) | 143 (83%) | 0.029 |
| 2–4 | 9 (38%) | 30 (17%) | |
| Smoking status | |||
| Current/former | 15 (62%) | 135 (78%) | 0.123 |
| Never | 9 (38%) | 38 (22%) | |
| Histology | |||
| Squamous | 2 (8%) | 46 (27%) | 0.073 |
| Nonsquamous | 22 (92%) | 127 (73%) | |
| EGFR or ALK | |||
| Positive | 6 (25%) | 28 (16%) | 0.264 |
| Negative | 18 (75%) | 145 (84%) | |
| PD‐L1 | |||
| Positive | 8 (33%) | 77 (45%) | 0.485 |
| Negative | 4 (17%) | 31 (18%) | |
| Unknown | 12 (50%) | 65 (37%) | |
| Number of previous chemotherapeutic regimens | |||
| ≤2 | 14 (58%) | 138 (80%) | 0.034 |
| ≥3 | 10 (42%) | 35 (20%) | |