|
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)
|
- *calculated as the score at time 1 minus the score at time 2.
-
†All ICC values were statistically significant (p < 0.001).
-
‡All differences between the DASH and the other 3 forms were significant (p ≤ 0.001) except for random-11 form 2 at follow-up (p = 0.053)
-
ap = 0.6, bp = 0.9, cp = 0.2.
- ICC, intraclass correlation coefficient; alpha, Cronbach alpha coefficient; ITC, item-total correlation
