Test-retest reproducibility of the Danish WOSI questionnaire (electronic versions) completed within a 14-day interval (n=41)
| WOSI e (1) | WOSI e (2) | Diff. | 95% LOA | SEM (%) | MDC (%) | ICC (95% CI) | |||
| Mean±SD | Range | Mean±SD | Range | Mean±SD | |||||
| Domains | |||||||||
| Physical symptoms (0–1000) | 307.0 (256.1) | 0–894 | 293.2 (268.0) | 2–964 | 13.8 (82.1) | −147.1; 174.7 | 58.1 (6) | 161.0 (16) | 0.95 (0.91 to 0.97) |
| Sports, recreation, work (0–400) | 147.5 (131.9) | 0–388 | 135.7 (133.3) | 0–396 | 12.2 (50.1) | −86.0; 110.4 | 35.4 (9) | 98.2 (25) | 0.93 (0.87 to 0.96) |
| Lifestyle (0–400) | 136.4 (129.6) | 0–381 | 138.2 (131.1) | 0–395 | 1.8 (36.3) | −69.4; 73.5 | 25.7 (6) | 71.2 (18) | 0.96 (0.93 to 0.98) |
| Emotions (0–300) | 144.1 (111.6) | 0–300 | 137.2 (113.1) | 0–300 | 6.8 (39.6) | −70.8; 79.1 | 28.0 (9) | 77.6 (26) | 0.94 (0.89 to 0.97) |
| WOSI total score (0–2100) | 735.0 (596.5) | 5–1941 | 704.0 (618.7) | 2–2055 | 31.1 (141.6) | −246.4; 308.6 | 100.1 (5) | 277.5 (13) | 0.97 (0.95 to 0.99) |
Diff., difference; e (1), first electronic completion; e (2), second electronic completion; ICC, Intra-class Correlation Coefficient; LOA, limits of agreement; MDC, minimal detectable change; WOSI, Western Ontario Shoulder Instability.