Patient demographic data.
| Characteristic | N (%) | Mean (SD) |
|---|---|---|
| Male | 35 (76.1) | |
| Age, yrs | 45.1 (range 24–69) | |
| Disease duration, yrs | 12.9 (10.9) | |
| Current smoker | 12 (26.1) | |
| Ex-smoker | 5 (10.9) | |
| Body mass index, kg/m2 | 27.4 (4.0) | |
| Normal weight, BMI < 25 | 15 (32.6) | |
| Overweight, BMI 25–30 | 17 (37) | |
| Obese, BMI > 30 | 14 (30.5) | |
| Bone mineral density, T score | −1.47 (1.46) | |
| In current employment | 24 (52.2) |
BMI: body mass index.