Table 1.
Patients’ characteristics at baseline immunotherapy.
| Validation Cohort | Characteristics n (%) n = 193 |
|---|---|
| Gender Male Female |
120 (62) 73 (38) |
| Median age, years (range) <70 ≥70 |
65 (30–88) 131 (68) 62 (32) |
| ECOG PS Median (range) 0 1 2 |
1 (0–2) 68 (36) 99 (52) 23 (12) |
| Smoking status: Former/current smoker Never smoker |
150 (78) 43 (22) |
| Median pack years, (range) | 30 (0–177) |
| Histologic subtype Adenocarcinoma Squamous Other histologies |
144 (74) 44 (23) 5 (3) |
| Stage IIIb–c IV |
5 (3) 188 (97) |
| Liver metastases Yes No |
38 (20) 155 (80) |
| Bone metastases Yes No |
87 (45) 106 (55) |
| Brain metastases Yes No |
44 (23) 149 (77) |
| Treatment line Second line ≥Third line |
118 (61) 75 (39) |
ECOG PS, Eastern Cooperative Oncology Group Performance Status.