Characteristics of the patients.
| Demographics | N = 118 |
| Age, yrs, mean (SD) | 48.9 (11.2) |
| Sex (male), n (%) | 75 (64) |
| Current smoking, n (%) | 18 (15) |
| BMI, kg/m2, mean (SD) | 25.6 (3.4) |
| Height, cm, mean (SD) | 174 (10) |
| Loss of height, cm, median (IQR) | 1 (0–3) |
| Disease characteristics | |
| BASDAI, mean (SD) | 3.7 (1.8) |
| ASDAS, mean (SD) | 2.3 (0.9) |
| CRP, mg/l, median (IQR) | 3 (1–9) |
| Medication, current use | |
| NSAID, n (%) | 77 (65) |
| TNF-α inhibitors, n (%) | 24 (20) |
| Statins, n (%) | 15 (13) |
| Antihypertensives, n (%) | 28 (24) |
| Lipids | |
| TC, mmol/l, mean (SD) | 5.4 (1.1) |
| HDL-C, mmol/l, mean (SD) | 1.6 (0.5) |
| Cardiorespiratory fitness | |
| VO2peak, ml/kg/min, mean (SD) | 39.3 (8.0) |
| Maximum heart rate (bpm), mean (SD) | 172 (19) |
| Borgs scale ≥ 17 at end of exercise test, n (%) | 115 (98) |
| Hemodynamic | |
| Brachial SBP, mmHg, mean (SD) | 127 (17) |
| Brachial DBP, mmHg, mean (SD) | 78 (10) |
| CMAP, mmHg, mean (SD) | 95 (12) |
| AIx (%), mean (SD) | 14.8 (13.1) |
| PWV, m/s, median (IQR) | 7.3 (6.2–8.4) |
| Ln(PWV + 0.5), mean (SD) | 1.986 (0.199) |
AIx: augmentation index; ASDAS: Ankylosing Spondylitis Disease Activity Score; BMI: body mass index; CMAP: central mean arterial pressure; CRP: C-reactive protein; DBP: diastolic blood pressure; HDL-C: high-density lipoprotein cholesterol; IQR: interquartile range; NSAID: nonsteroidal antiinflammatory drugs; PWV: pulse wave velocity; Ln: log-transformed; SBP: systolic blood pressure; TC: total cholesterol; TNF-α: tumor necrosis factor–α; VO2peak: peak oxygen uptake; BASDAI: Bath Ankylosing Spondylitis Disease Activity Index.