The AUSCAN and PRWHE Demonstrate Comparable Internal Consistency and Validity in Patients With Early Thumb Carpometacarpal Osteoarthritis

Abstract

The AUSCAN and PRWHE are both valid assessments for pain and/or disability in patients with early thumb CMC OA.

Evaluation of the Content Validity Index of the Australian/Canadian Osteoarthritis Hand Index, the Patient-Rated Wrist/Hand Evaluation and the Thumb Disability Exam in People with Hand Arthritis

“…The Australian/Canadian Osteoarthritis Hand Index (AUSCAN) is a 15-item self-reported disease speci c questionnaire measuring pain (5-items), function (9-items) and stiffness (1-item) in the hand on a scale from 0 -none to 4 -extreme for all items. [18,20] The Patient-Rated Wrist/Hand Evaluation (PRWHE) is a self-administered questionnaire which has 2 subscales of pain (5-items) and function (10-items). The PRWHE was originally developed and tested for people with distal radius fracture (DRF) [21,23,24] and later validated as applicable to the wrist/hand for multiple conditions including arthritis as the PRWHE.…”

“…The PRWHE was originally developed and tested for people with distal radius fracture (DRF) [21,23,24] and later validated as applicable to the wrist/hand for multiple conditions including arthritis as the PRWHE. [18,25] Each item is scored from 0 to 10 scale which 10 indicates the worst possible pain or disability. The Thumb Disability Exam (TDX) is composed of 20 questions divided into 3 sections: hand function (11-items), pain (5-items) and satisfaction (4-items).…”

“…[14] Most importantly, if key aspects are missing or the questions are not relevant responses, they may not re ect patient status or concerns, and may be biased because patients may get frustrated. [17] The Australian/Canadian Osteoarthritis Hand Index (AUSCAN) [18], the Patient-Rated Wrist/Hand Evaluation (PRWHE) [18] and the Thumb Disability Exam (TDX) [19] are clinical tools designed to assess pain and hand function in hand arthritis. Their psychometric properties [18][19][20][21] such as reliability, validity and responsiveness have been studied however, the evaluation of relevance and clarity of all the individual items by including patient input as experts has not been quanti ed.…”

“…[17] The Australian/Canadian Osteoarthritis Hand Index (AUSCAN) [18], the Patient-Rated Wrist/Hand Evaluation (PRWHE) [18] and the Thumb Disability Exam (TDX) [19] are clinical tools designed to assess pain and hand function in hand arthritis. Their psychometric properties [18][19][20][21] such as reliability, validity and responsiveness have been studied however, the evaluation of relevance and clarity of all the individual items by including patient input as experts has not been quanti ed. Therefore, we aimed to investigate the quanti cation of content validity index by asking patients with hand arthritis to rate each of the instruments items in terms of relevance and clarity.…”

Evaluation of the content validity index of the Australian/Canadian osteoarthritis hand index, the patient-rated wrist/hand evaluation and the thumb disability exam in people with hand arthritis

“…The Australian/Canadian Osteoarthritis Hand Index (AUSCAN) [18], the Patient-Rated Wrist/Hand Evaluation (PRWHE) [18] and the Thumb Disability Exam (TDX) [19] are clinical tools designed to assess pain and hand function in hand arthritis [18][19][20][21]. Both AUSCAN and PRWHE have demonstrated construct validity with verbal rating scale, had high internal consistency, and correlated with each other at baseline and follow-up time points in patients with early thumb carpometacarpal OA [18]. However, previous studies have reported inconsistent results about construct validity of AUSCAN [22][23][24].…”