Table 2.
Comparison of Baseline Demographic Characteristics in Participants With and Without COPD
| Characteristic | Subjects With COPD (n = 1,017) | Smoking Control Subjects (n = 858) | P Value |
|---|---|---|---|
| Age, y | 61.8 ± 8.0 | 59.5 ± 8.2 | < .001 |
| Male sex | 528 (51.9) | 429 (50.0) | .408 |
| Race, non-Hispanic white | 762 (74.9) | 633 (73.8) | .570 |
| BMI, kg/m2 | 29.1 ± 6.4 | 29.2 ± 5.5 | .772 |
| Smoking pack-years | 48.0 (25.3) | 37.9 (20.7) | < .001 |
| Current smoker | 476 (46.8) | 393 (45.8) | .665 |
| Diabetes mellitus | 126 (12.4) | 108 (12.6) | .897 |
| Hypertension | 475 (46.7) | 345 (40.2) | .005 |
| Hyperlipidemia | 430 (42.3) | 368 (42.9) | .790 |
| Coronary artery disease | 89 (8.8) | 44 (5.1) | .002 |
| Ischemic cerebrovascular disease | 34 (3.3) | 12 (1.4) | .007 |
| Peripheral arterial disease | 29 (2.9) | 11 (1.3) | .019 |
| Percutaneous coronary intervention | 67 (6.6) | 36 (4.2) | .024 |
| Coronary artery bypass grafting | 26 (2.6) | 15 (1.7) | .233 |
| Agatston CAC | |||
| ≥ 100 | 396 (38.9) | 263 (30.7) | < .001 |
| ≥ 300 | 197 (19.4) | 109 (12.7) | < .001 |
| ≥ 400 | 147 (14.5) | 94 (11.0) | .024 |
| Weston CAC ≥ 7 | 254 (25.0) | 159 (18.5) | < .001 |
Data are presented as mean ± SD or No. (%). See Table 1 legend for expansion of abbreviation.