Table 3.
Demographic and clinical characteristics for PSM patients
| Characteristics | Patients no (%) | ||
|---|---|---|---|
| Non‐COPD (n = 59) | COPD (n = 59) | P | |
| Mean age ± SD | 77.3 ± 8.5 | 78.3 ± 9.2 | 0.610 |
| Range | 56 ~ 91 | 54 ~ 101 | |
| Age ≥75 y old | |||
| Yes | 39 (66.1) | 40 (67.8) | 0.845 |
| No | 20 (33.9) | 19 (32.2) | |
| Gender | |||
| Male | 56 (94.9) | 55 (93.2) | 0.697 |
| Female | 3 (5.1) | 4 (6.8) | |
| Smoking history | |||
| Yes | 37 (62.7) | 33 (55.9) | 0.453 |
| No | 22 (37.3) | 26 (44.1) | |
| Smoking index, Pack‐years | |||
| ≥20 | 29 (49.2) | 27 (45.8) | 0.712 |
| <20 | 30 (50.8) | 32 (54.2) | |
| ECOG PS score | |||
| 0 ~ 1 | 29 (49.2) | 25 (42.4) | 0.460 |
| ≥2 | 30 (50.8) | 34 (57.6) | |
| TNM stage | |||
| I | 37 (62.7) | 36 (61.0) | 0.877 |
| II | 4 (6.8) | 3 (5.1) | |
| III | 8 (13.6) | 11 (18.6) | |
| IV | 10 (16.9) | 9 (15.3) | |
| Histologic subtype | |||
| Squamous cell carcinoma | 14 (23.7) | 13 (22.0) | 0.801 |
| Adenocarcinoma | 29 (49.2) | 30 (50.8) | |
| Adenosquamous carcinoma | 1 (1.7) | 3 (5.1) | |
| NSCLC, NOS | 13 (22.0) | 10 (16.9) | |
| Others | 2 (3.4) | 3 (5.1) | |
| Initial treatment | |||
| Surgery | 22 (37.3) | 19 (32.2) | 0.760 |
| Radiation | 14 (23.7) | 18 (30.5) | |
| Chemotherapy | 6 (10.2) | 5 (8.5) | |
| EGFR‐TKIs | 10 (16.9) | 7 (11.9) | |
| BSC | 7 (11.9) | 10 (16.9) | |
| Previous tumors | |||
| Yes | 42 (71.2) | 45 (76.3) | 0.530 |
| No | 17 (28.8) | 14 (23.7) | |
Abbreviations: BSC, best supportive care; COPD, chronic obstructive pulmonary disease; EGFR‐TKI, epidermal growth factor receptor‐tyrosine kinase inhibitor; PSM, propensity score matching.