Demographic and clinical characteristics for the 85 patients in the Oslo hand OA cohort
| Characteristics | Value |
|---|---|
| Women | 77 (90.6%) |
| Age, years | 68.8 (5.6) |
| Body mass index, kg/m2 | 26.0 (3.6) |
| ACR criteria hand | 79 (92.9%) |
| ACR criteria hip (n=59) | 8 (13.6%) |
| ACR criteria knee (n=81) | 55 (67.9%) |
| Findings in the 30 joints examined by radiography and clinical examination | |
| Radiographic hand OA* (n=84) | 82 (97.6%) |
| Erosive hand OA† (n=84) | 50 (59.5%) |
| Number of joints with radiographic hand OA (KLG≥2) (0–30) | 8 (4–15) |
| Number of tender joints (0–30) | 9 (5–14) |
| Findings in the eight interphalangeal joints scanned by MRI | |
| Joints with hand OA (KLG≥2) (0–8) | 3 (1–5) |
| Number of tender joints (0–8) | 4 (2–5) |
| Measures of pain and physical function | |
| AUSCAN pain (n=83) (0–20) | 8.6 (4.0) |
| AUSCAN stiffness (n=84) (0–4) | 2.1 (0.8) |
| AUSCAN physical function (0–36) | 17.3 (7.6) |
| AIMS-2 hand/finger (0–20) | 7.1 (4.7) |
| FIHOA (n=82) (0–30) | 10.7 (6.2) |
| Grip strength, kg | 20.3 (8.8) |
Data presented as n (%) for dichotomous variables, mean (SD) for continuous demographic variables, patient-reported outcomes and grip strength, and median (interquartile range) for number of affected joints. Achievable ranges are presented in brackets.
↵* One or more joints with Kellgren–Lawrence grade ≥2.
↵† One or more radiographic erosive joint (as defined by the OARSI atlas).
ACR, American College of Rheumatology; AIMS-2, Arthritis Impact Measurement Scale 2; AUSCAN, Australian/Canadian hand index; FIHOA, Functional Index of hand osteoarthritis; KLG, Kellgren–Lawrence grade; OA, osteoarthritis; OARSI, Osteoarthritis Research Society International.