Table 1 Patients’ characteristics
| Variable |
NSCLC n = 80 |
Control group n = 16 |
|---|---|---|
| Gender n (%): | ||
| Female | 16 (20) | 3 (18.8) |
| Male | 64 (80) | 13 (81.2) |
| Age, years, median (range) | 66 (45–77) | 34 (19–77)# |
| Smoking history n (%):* | ||
| Non- smokers | 14 (17.5) | 10 (62.5) |
| Smokers | 66 (82.5) | 6 (37.5) |
| Smoking pack-years, median (range) | 30 (0–60) | 2.5 (0–50)# |
| FEV1% of pred. Median (range) | 83 (33–144) | 93 (70–114) |
| FEV1/FVC ratio % of pred., median (range) | 89 (49–123) | 107 (86–114)# |
| COPD n (%):* | ||
| Present | 24 (30) | 0 (0) |
| Absent | 56 (70) | 16 (100) |
| Histological NSCLC type n (%): | ||
| Adenocarcinoma | 38 (47.5) | _ |
| Squamous cell carcinoma | 36 (45) | |
| Other | 6 (7.5) | |
| NSCLC stage n (%): | ||
| IA-IB | 23 (28.7) | _ |
| IIA-IIB | 26 (32.5) | |
| IIIA-IIIB | 31 (38.8) | |
| pT status n (%): | ||
| pT1a-2b | 58 (72.5) | _ |
| pT3–4 | 22 (27.5) | |
| Lymph node status n (%): | ||
| Negative (N0) | 35 (43.7) | _ |
| Positive (N1-N3) | 45 (56.3) | |
| Differentiation n (%): | ||
| Poor | 46 (57.5) | _ |
| Other | 34 (42.5) |