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Fig. 3 | BMC Musculoskeletal Disorders

Fig. 3

From: Structural validity of the Boston Carpal Tunnel Questionnaire and its short version, the 6-Item CTS symptoms scale: a Rasch analysis one year after surgery

Fig. 3

Response category threshold curve showing disordered thresholds for item 3 (“How severe are the following symptoms in your hand? –numbness or tingling at night”) in the CTS-6. The response options were 0= “None”, 1= “Mild”, 2= “Moderate”, 3= “Severe”, 4= “Very severe”. Note in figure ‘Person location’

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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