Anthropometric characteristics, alcohol and smoking habits and comorbidities
| NIV (N=40) | Control (N=46) | All (N=86) | |
|---|---|---|---|
| Gender, male, % | 25 | 17 | 21 |
| Age, years, median (IQR) | 67 (12) | 69 (15) | 68 (14) |
| BMI, kg/m2, mean (SD) | 40 (6.3) | 40 (5.6) | 40 (5.9) |
| Neck circumference, cm, median (IQR) | 42 (7) | 42 (5) | 42 (5.8) |
| Waist circumference, cm, mean (SD) | 123 (15) | 119 (12) | 121 (14) |
| Waist/hip ratio, mean (SD) | 0.97 (0.1) | 0.95 (0.08) | 0.96 (0.09) |
| Active drinker, % | 13 | 9 | 11 |
| Alcohol, g, median (IQR) | 30 (12) | 23 (30) | 30 (20) |
| Active smoker, % | 7.5 | 15 | 12 |
| Pack years, median (IQR) | 35 (18) | 40 (26) | 38 (21) |
| COPD, %* | 5.0 | 6.5 | 6.0 |
| Hypertension, % | 80 | 80 | 80 |
| Drug number, median (IQR) | 2 (1) | 1 (1) | 1 (1) |
| Diabetes, % | 35 | 41 | 38 |
| Dyslipidaemia, % | 30 | 54 | 43 |
| Ischaemic heart disease, % | 11 | 8.7 | 9.5 |
| Arrhythmia, % | 16 | 7 | 11 |
| Chronic heart failure, % | 37 | 13 | 24 |
| Stroke, % | 8.1 | 8.9 | 8.5 |
| Leg arteriopathy, % | 14 | 15 | 15 |
| Pulmonary hypertension, % | 18 | 11 | 14 |
*Defined as FEV1 >70% of predicted when FEV1/FVC <70. BMI, body mass index; NIV, non-invasive ventilation.