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Table 3 Internal consistency of the disabilities of the arm, shoulder and hand (DASH) questionnaire measured with the Cronbach alpha coefficient

From: The disabilities of the arm, shoulder and hand (DASH) outcome questionnaire: longitudinal construct validity and measuring self-rated health change after surgery

Population DASH disability/symptoms scale
  Preoperative Postoperative
Total population (n = 109) 0.97 0.98
Arthroscopic acromioplasty (n = 25) 0.92 0.97
Carpal tunnel release (n = 19) 0.96 0.98