Table 1 Baseline patient characteristics
Characteristics | Brain metastasis (N = 26) | Liver metastasis (N = 16) | Locally advanced (N = 25) | Healthy control (N = 5) |
|---|---|---|---|---|
Age group-no. (%) | ||||
 < 55 year | 6 (23.1%) | 3 (18.8%) | 2 (8.0%) | 5 (100.0%) |
 55–64 year | 14 (53.8%) | 8 (50.0%) | 15 (60.0%) | 0 (0.0%) |
 ≥ 65 year | 6 (23.1%) | 5 (31.2%) | 8(32.0%) | 0 (0.0%) |
 Median age (range)-year | 59 (40–77) | 61 (41–70) | 61 (44–72) | 33 (25–46) |
Gender | ||||
 Male-no. (%) | 17 (65.4%) | 11 (68.8%) | 19 (76.0%) | 1 (20.0%) |
 Female-no. (%) | 9 (34.6%) | 5 (31.2%) | 6 (24.0%) | 4 (80.0%) |
History of tobacco use-no. (%) | ||||
 Never | 9 (34.6%) | 3 (18.8%) | 10 (40.0%) | 5 (100.0%) |
 Previous and current | 15 (57.7%) | 10 (62.4%) | 14 (56.0%) | 0 (0.0%) |
 Unknown | 2 (7.7%) | 3 (18.8%) | 1 (4.0%) | 0 (0.0%) |
Histologic subtype-no. (%) | ||||
 Non-small cell lung cancer | 20 (76.9%) | 8 (50.0%) | 15 (60.0%) | – |
 Small cell lung cancer | 6 (23.1%) | 8 (50.0%) | 10 (40.0%) | – |