OA, n = 5473 | RA, n = 193 | p | |
---|---|---|---|
WOMAC baseline pain (SD) | 53.2 (17.9) | 44.8 (21.1) | < 0.001 |
WOMAC 2-yr pain (SD) | 94.0 (11.2) | 88.4 (17.1) | < 0.001 |
WOMAC > 10, pain, n (%) | 3549 (96) | 72 (94) | 0.35 |
WOMAC baseline function (SD) | 49.9 (18.6) | 38.7 (20.3) | < 0.001 |
WOMAC 2-yr function (SD) | 91.8 (12.5) | 82.9 (19.6) | < 0.001 |
WOMAC > 10, function, n (%) | 3071 (94) | 63 (95) | 0.69 |
Poor pain at 2 yrs, WOMAC pain ≤ 60, n (%) | 122 (3) | 10 (12) | < 0.001 |
Poor function at 2 yrs, WOMAC function ≤ 60, n (%) | 152 (4) | 16 (19) | < 0.001 |
SF-12 PCS baseline (SD) | 33.9 (8.4) | 29.3 (7.9) | < 0.001 |
SF-12 PCS at 2 yrs (SD) | 50.1 (9.3) | 40.8 (13.0) | < 0.001 |
SF-12 MCS baseline (SD) | 50.1 (12.5) | 46.4 (13.6) | < 0.001 |
SF-12 MCS at 2 yrs (SD) | 54.1 (8.8) | 52.1 (10.9) | 0.05 |
OA: osteoarthritis; RA: rheumatoid arthritis; WOMAC: Western Ontario and McMaster Universities Osteoarthritis Index; SF-12: SF-12 Short Form Health Survey; PCS: physical component scale; MCS: mental component scale.