Table 1 Subject characteristics, disability, and force measurements in the rheumatoid arthritis (RA), hand osteoarthritis (HOA), and healthy groups
Sociodemographic | RA(n= 20) | HOA(n= 16) | Healthy(n= 20) |
|---|---|---|---|
Age (years) m1 (95% CI) | 59.5 (54–64) | 68.1 (62–72) | 56.0 (51–60) |
Disease duration (years) m (95% CI) | 20.0 (15.1–28.2) | 15.0 (11.5–20.3) | Na |
Medication* (%) | 100 | 41.1 | Na |
Measurements of disability | |||
Quick DASH2 m (95% CI) | 40.9 (33.2–50.7) | 31.8 (30.8–45.2) | 2.3 (0.9–10.5) |
VAS stiffness3 m (95% CI) | 3.0 (2.0–4.1) | 4.0 (2.5–5.1) | Na |
VAS pain3 m (95% CI) | 2.0 (1.5–3.0) | 3.9 (3.1–5.0) | Na |
Hand force ( N ) | |||
Max extension (N)4 m (95% CI) | 20.0 (17.8–26.1) | 26.0 (21.4–31.5) | 33.5 (30.6–39.3) |
Max flexion (N)5 m (95% CI) | 81.0 (67.4–137.4) | 81.5 (70.8–125.8) | 245.0 (195.3–275.6) |