Table 1 Characteristics of genotyped subjects in the 1989/1990 survey
From: Decorin and TGF-β 1 polymorphisms and development of COPD in a general population
No COPD (N = 1156) | COPD (N = 188) | |
|---|---|---|
Males, n (%) | 554 (47.9) | 137 (72.9) |
Age in years, median (IQR) | 50 (35–79) | 59 (35–76) |
Pack-years of smoking, median (IQR) | 7.5 (0–21.6) | 25.5 (6.6–35.7) |
FEV1%pred, median (IQR) | 95.8 (87.9–104.5) | 71.1 (61.1–77.1) |
FEV1/VC, median (IQR) | 76.6 (62.1–80.5) | 60.0 (54.5–65.7) |