Characteristics of participants
| Norway | Denmark | Portugal | UK | Total | |
|---|---|---|---|---|---|
| Number of responders | 71 | 49 | 135 | 99 | 354 |
| Age, mean (SD) | 66.1 (10.18) | 57.6 (7.55) | 69.2 (8.15) | 71.7 (10.07) | 67.7 (10.07) |
| Female, n (%) | 48 (68) | 26 (53) | 104 (77) | 59 (60) | 237 (67) |
| BMI, mean (SD) | 28.4 (4.22) | 27.3 (2.58) | 29.5 (5.23) | 28.0 (5.20) | 28.5 (4.78) |
| WOMAC SF-8,* mean (SD) | 46.4 (19.17) | 31.6 (15.65) | 28.7 (22.53)† | 45.8 (19.58) | 40.4 (20.65) |
| Inflammatory arthritis,‡ n (%) | 19 (31) | 29 (59) | 56 (42) | 4 (4) | 108 (31) |
| Chronic disease,§ n (%) | 32 (46) | 31 (63) | 98 (73) | 34 (34) | 195 (55) |
*Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), Short Form 8-item function scale score (0–100, 0=best).
†n=41.
‡Inflammatory arthritis, ankylosing spondylitis, Sjogren's syndrome, psoriasis, psoriatic arthritis, polymyalgia rheumatica, systemic lupus erythematosus and rheumatoid arthritis.
§Chronic disease: heart disease, lung disease, other musculoskeletal disorder, cancer and diabetes.
BMI, body mass index.