Table 2. Characteristics of participants used for mRNA profile analysis.
| Variables | HC | HS | COPD |
|---|---|---|---|
| Subjects (No.) | 10 | 10 | 10 |
| Age (year) | 60.0 ± 1.5 | 57.2 ± 1.1 | 59.1 ± 1.6 |
| Gender (Male/female) | 9/1 | 9/1 | 8/2 |
| Tobacco (pack-year) | — | 39 (17–53) | 39 (23–68) |
| FEV1 (% predicted) | 93.9 ± 1.2 | 92.3 ± 1.1 | 52.1 ± 1.9*# |
| FEV1/ FVC (%) | 85.90 ± 2.43 | 84.93 ± 1.90 | 43.82 ± 3.46*# |
| WBC (×109/L) | 5.88 ± 0.35 | 6.12 ± 0.43 | 6.44 ± 0.51 |
The data are represented as the mean ± SEM or median (range). FEV1: forced expiratory volume in one second; FVC: forced vital capacity; WBC: white blood cell. *P < 0.01 vs. the HC group; #P < 0.01 vs. the HS group.