Comparison of linear regression models of BODE constituent variables, cardiovascular comorbidities and established predictors of arterial stiffness
| Dependent variable | aPWV (m/s) | Augmentation Index (%) | ||
| β coefficient | p-value | β coefficient | p-value | |
| Age (years) | 0.4 | <0.0001 | -0.01 | 0.7 |
| MAP (mmHg)* | 0.2 | <0.0001 | 0.26 | <0.0001 |
| HR (bpm)* | 0.2 | <0.0001 | -0.49 | <0.0001 |
| TPYs | -0.001 | 0.98 | 0.02 | 0.63 |
| BMI (kg/m2) | 0.09 | 0.01 | -0.17 | <0.0001 |
| FEV1 (%) | -0.06 | 0.09 | 0.05 | 0.14 |
| mMRC (0–4) | 0.07 | 0.09 | 0.003 | 0.94 |
| 6MWD (m) | -0.03 | 0.5 | -0.01 | 0.002 |
| MI | -0.01 | 0.7 | -0.08 | 0.02 |
| Stroke | -0.01 | 0.7 | -0.02 | 0.46 |
| Diabetes | 0.07 | 0.03 | -0.08 | 0.02 |
| PVD | 0.1 | 0.004 | 0.01 | 0.78 |
| Study site | -0.06 | 0.09 | -0.03 | 0.45 |
*Supine for aortic pulse wave velocity (aPWV), seated for Augmentation Index.
TPYs: Total pack years smoked, mMRC dyspnoea scale, 6MWD: 6-minute walk distance, MI: Myocardial Infarction, PVD: Peripheral Vascular Disease.
Cardiovascular comorbidities: self-reported on questionnaire.