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Table 2 Demographic data and data from the OSIS, SST, OSS, and DASH at baseline and retesting

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

  Baseline assessment Reliability cohort
  138 99
Mean age yrs (SD) 32 (12) 32 (14)
Gender (male vs female) 98 (71%) vs 40 (29%) 66 (67%) vs 33 (33%)
Dislocated shoulder   
  Right 72 (53%) 54 (55%)
  Left 59 (43%) 40 (40%)
  Both 6 (4%) 5 (5%)
Dominant side dislocated 72 (53%) 53 (54%)
Date first dislocation   
  <1 month 8 (6%) 8 (8%)
  1 - 6 months 21 (15%) 17 (17%)
  >6 months – 2 years 40 (29%) 25 (25%)
  >2 years 67 (49%) 49 (50%)
OSIS (0 – 48)* 27.3 (9.1) 27.6 (9.7) ¶
SST (0 – 12)* 8.8 (3.1) 8.8 (3.2) ¶
OSS (48 – 0)* 23.7 (7.8) 22.8 (8.3) ¶
DASH (100 – 0)* 22.2 (16.7) 22.7 (18.3) ¶
  1. *ranges reflect most impaired to least impaired function.
  2. ¶No significant change in shoulder function (OSIS, SST, OSS, DASH) was observed at retest compared with baseline.