Table 1 Characteristics of subjects included in Genome-Wide Association Study.
From: A genome-wide association study of quantitative computed tomographic emphysema in Korean populations
All (n = 548) | COPD (n = 514) | |
|---|---|---|
Gender | ||
Male, n (%) | 476 (86.9) | 456 (88.7) |
Female, n (%) | 72 (13.1) | 58 (11.3) |
Age, year | 71.20 ± 7.60 | 71.12 ± 7.63 |
Smoking | ||
Never-smoker, n (%) | 88 (16.1) | 70 (13.6) |
Ever-smoker, n (%) | 460 (83.9) | 444 (86.4) |
Pack-years | 30.95 ± 27.32 | 31.87 ± 27.30 |
BMI (kg/m2) | 23.14 ± 3.25 | 23.13 ± 3.27 |
< 23.0, n (%) | 262 (47.8) | 243 (47.3) |
23.0–24.9, n (%) | 131 (23.9) | 125 (24.3) |
≥ 25.0, n (%) | 155 (28.3) | 146 (28.4) |
Emphysema Index | 12.46 ± 12.39 | 12.93 ± 12.49 |
FEV_1, % predicted | 68.76 ± 22.70 | 66.54 ± 21.19 |
