Scale | Test-retest reliability | Cross-sectional reliability | Agreement with DASH | |||||||
---|---|---|---|---|---|---|---|---|---|---|
Baseline | Baseline | Follow-up | Baseline | Follow-up | ||||||
Agreement | Difference* | Agreement | Difference | Agreement | Difference | |||||
ICC (95% CI)† | mean (95% CI) | alpha | ITC range | alpha | ITC range | ICC (95% CI)† | mean (95% CI)‡ | ICC (95% CI)† | mean (95% CI)‡ | |
DASH | 0.93 (0.86–0.97) | 0.9 (- 2.3–4.0)a | 0.97 | 0.41–0.86 | 0.98 | 0.57–0.90 | 1 | 0 | 1 | 0 |
Quick DASH | 0.93 (0.87–0.97) | -0.2(-3.6–3.1)b | 0.92 | 0.42–0.83 | 0.95 | 0.63–0.88 | 0.96 (0.84–0.98) | 4.2 (3.2–5.3) | 0.97 (0.92–0.99) | 2.6 (1.7–3.4) |
Random-11 1 | 0.92 (0.84–0.96) | -2.1(-5.7–1.5)c | 0.93 | 0.55–0.82 | 0.95 | 0.55–0.88 | 0.96 (0.92–0.98) | 3.1 (2.0–4.2) | 0.97 (0.91–0.98) | 3.4 (2.4–4.5) |
Random-11 2 | 0.93 (0.85–0.96) | -0.3(-3.7–3.1)b | 0.91 | 0.42–0.81 | 0.95 | 0.62–0.87 | 0.97 (0.96–0.98) | 1.7 (0.7–2.7) | 0.99 (0.98–0.99) | 0.7 (0–1.4) |