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Table 4 Test–retest reliability (ICC) and the standard error of measurement (SEM) for the WOSI

From: Measurement properties of the Western Ontario Shoulder Instability Index in Dutch patients with shoulder instability

N = 99 Mean (SD) SEM ICC (95% CI)
  Baseline Re-test Change   
WOSI      
Total 971 (482) 959 (509) -12.1 (199.5) 174 0.92 (0.88-0.95)
Total as % 46.0 (22.3) 45.7(24,2) - 0.6 (9.5) 8.3 0.92 (0.88-0.95)
Domain as %      
Physical 60.2 (24.0) 60.6 (24.7) 0.4 (11.2) 8.3 0.90 (0.85 – 0.93)
sp/rec/wrk 47.7 (27.8) 49.6 (28.5) 1.9 (12.7) 9.4 0.90 (0.85 – 0.93)
Lifestyle 56.5 (24.3) 55.8 (25.4) - 0.7 (12.3) 8.8 0.88 (0.83 - 0.92)
Emotion 36.8 (27.5) 37,8 (30.2) 1.0 (14.4) 10.1 0.88 (0.82 - 0,92)
  1. Scores are presented for the total WOSI score (range 0–2100), the total WOSI score expressed as a percentage (range 1–100), and all WOSI subdomains.