DASH and QuickDASH: formula, interpretation and when to use each

What is the DASH?

The DASH (Disabilities of the Arm, Shoulder and Hand) is a patient-reported outcome instrument developed by Hudak et al. (1996) to measure functional disability and symptoms in people with upper extremity musculoskeletal disorders. It applies to any condition of the shoulder, elbow, wrist or hand.

With 30 items on a 1–5 Likert scale, the DASH produces a single score from 0 to 100 — where 0 = no disability and 100 = maximum disability. Unlike the KOOS and WOMAC, lower DASH scores indicate better function.

Formula and missing item rule

Official DASH and QuickDASH formula

Score = [(Sum of items / n answered) − 1] × 25

DASH: minimum 27/30 items answered for valid score
QuickDASH: minimum 10/11 items answered
0 = no disability | 100 = maximum disability

⚠ Important

With fewer than 27 items (DASH) or 10 items (QuickDASH) answered, the score is invalid and should not be reported. With 27–29 items answered, the score is valid but should be flagged.

Calculate the DASH for free

Apply the questionnaire online and get the score with exportable PDF.

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DASH vs QuickDASH: when to use each

	DASH	QuickDASH
Items	30	11
Administration time	~8 min	~3 min
Formula	[(Σ/n)−1]×25	[(Σ/n)−1]×25
Minimum required	≥ 27/30 items	≥ 10/11 items
Best use	Research, detailed assessment	Rapid clinical screening
Comparative validity	Reference	Equivalent in most conditions

💡 Recommendation

For scientific publications and detailed pre/post-operative assessments, prefer the full DASH. For rapid clinical screening, the QuickDASH is equivalent and more practical.

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Interpretation (4 bands)

Score	Classification	Interpretation
0–20	Mild disability	Function well preserved, minimal symptoms
21–40	Moderate disability	Symptoms with moderate impact on activities
41–60	Significant disability	Relevant functional limitation, significant impact
61–100	Severe disability	Major functional limitation, urgent evaluation

The DASH MCID is approximately 10–15 points depending on the condition. For shoulder: ~10.2 pts (Beaton et al., 2001); for epicondylitis: ~11 pts.

The 3 item groups of the DASH

Group	Items	Content
Function / Activities (Part A)	Q1–Q21	ADL, housework, sport, leisure, sexual activity
Symptoms (Part B)	Q24–Q28	Pain, pain during activity, tingling, weakness, stiffness
Social / Work (Part C)	Q22, Q23, Q29, Q30	Social interference, work limitation, sleep, self-confidence

Despite the visual grouping, all 30 items feed into the same formula — there are no separately computed subscales in the standard DASH.