Table 1.
Demographic data of all enrolled COPD patients with and without asymptomatic PAD
| PAD (+) (n=17) | PAD (−) (n=183) | P-value | |
|---|---|---|---|
| Age | 71.9±9 | 70.9±9 | 0.645 |
| Sex, male | 17 (100%) | 184 (98.9%) | |
| BMI | 24.1±3.5 | 22.8±3.5 | 0.135 |
| Smoking | 17 (100%) | 186 (100%) | 1.000 |
| Current | 8 (47.1%) | 86 (47%) | 1.000 |
| Former | 9 (52.9%) | 97 (53%) | |
| Pack-years | 69.2±44 | 50.3±30 | 0.021 |
| DM | 6 (35.3%) | 29 (15.8%) | 0.086 |
| Hypertension | 11 (64.7%) | 87 (47.5%) | 0.210 |
| Hyperlipidemia | 6 (35.3%) | 17 (9.3%) | 0.006 |
| FEV1 | 1.20±0.4 | 1.28±0.5 | 0.571 |
| FEV1 % predicted | 55.9±19 | 56.5±18 | 0.907 |
| FEV1/FVC | 52.9±9 | 54.8±8 | 0.430 |
| MMEF% | 20.2±8 | 21.7±9 | 0.380 |
| ABI | 0.86±0.1 | 1.09±0.1 | <0.01 |
Abbreviations: COPD, chronic obstructive pulmonary disease; PAD, peripheral arterial disease; BMI, body mass index; DM, diabetes mellitus; FEV1, forced expiratory volume in 1 second; FVC, forced vital capacity; MMEF, maximum mid-expiratory flow; ABI, ankle-brachial index.