TY - JOUR
T1 - The Validity and Responsiveness of the Patient-Specific Functional Scale in Patients With First Carpometacarpal Osteoarthritis
AU - van Kooij, Yara Eline
AU - ter Stege, Marloes H.P.
AU - de Ridder, Willemijn Anna
AU - the Hand-Wrist Study Group
AU - Hoogendam, Lisa
AU - Hovius, Steven Eric Ruden
AU - MacDermid, Joy C.
AU - Selles, Ruud W.
AU - van der Avoort, Dirk Johannes Jacobus Cornelis
AU - Bijlsma, Ward Rogier
AU - Michiel Blomme, Richard Arjen
AU - de Boer, Herman Luitzen
AU - van Couwelaar, Gijs Marijn
AU - Debeij, Jan
AU - Dekker, Jak
AU - Feitz, Reinier
AU - Fink, Alexandra
AU - Harmsen, Kennard
AU - Hovius, Steven Eric Ruden
AU - van Huis, Rob
AU - Koch, Richard
AU - van Kooij, Yara Eline
AU - Koopman, Jaimy Emerentiana
AU - Kroeze, Alexander
AU - Loos, Nina Louisa
AU - Moojen, Thybout Matthias
AU - van der Oest, Mark Johannes Willem
AU - Pennehouat, Pierre Yves Alain Adriaan
AU - de Ridder, Willemijn Anna
AU - de Schipper, Johannes Pieter
AU - Schoneveld, Karin
AU - Selles, Ruud W.
AU - Slijper, Harm Pieter
AU - Smit, Jeronimus Maria
AU - Smit, Xander
AU - Souer, John Sebastiaan
AU - ter Stege, Marloes H.P.
AU - Temming, Johannes Frederikes Maria
AU - Teunissen, Joris Sebastiaan
AU - van Uchelen, Jeroen Hein
AU - Veltkamp, Joris Jan
AU - Vermeulen, Guus Maarten
AU - Walbeehm, Erik Taco
AU - Wouters, Robbert M.
AU - Zöphel, Oliver Theodor
AU - Zuidam, Jelle Michiel
AU - Wouters, Robbert M.
N1 - Publisher Copyright:
© 2024 American Society for Surgery of the Hand
PY - 2024/9
Y1 - 2024/9
N2 - Purpose: The purpose of this study was to assess the content, construct, and discriminative validity and responsiveness of the Patient-Specific Functional Scale (PSFS) in patients with thumb carpometacarpal arthritis. Methods: Data were collected at Xpert Clinics, comprising 34 outpatient hand surgery and hand therapy clinics in the Netherlands. We included 267 patients for content validity and 323 patients for construct validity and responsiveness. The PSFS items were classified into the International Classification of Function Core Set for Hand Conditions to assess content validity. We used hypothesis testing to investigate the construct validity and responsiveness. The Michigan Hand Outcomes Questionnaire was used as a comparator instrument. The standardized response mean was calculated to evaluate the magnitude of change. For discriminative validity, we used independent t tests to discriminate between satisfied and dissatisfied patients. Results: We classified 98% of the PSFS items in the International Classification of Function “activities” and “participation” domains, indicating good content validity. Two of six hypotheses for construct validity and three of six hypotheses for responsiveness were confirmed. The standardized response mean for the PSFS was 0.57 (0.46–0.68) and 0.47 (0.35–0.58) for the Michigan Hand Outcomes Questionnaire total score. The mean PSFS score showed good discriminative validity because it could distinguish between satisfied and dissatisfied patients at the 3-month follow-up. Conclusions: The PSFS scores showed good content and discriminative validity in patients with first carpometacarpal arthritis. Hypothesis testing for responsiveness and construct validity indicates that the PSFS measures a unique construct different from the Michigan Hand Outcomes Questionnaire. Clinical relevance: The PSFS may be a useful scale for measuring the patient-specific status of individuals with thumb carpometacarpal arthritis.
AB - Purpose: The purpose of this study was to assess the content, construct, and discriminative validity and responsiveness of the Patient-Specific Functional Scale (PSFS) in patients with thumb carpometacarpal arthritis. Methods: Data were collected at Xpert Clinics, comprising 34 outpatient hand surgery and hand therapy clinics in the Netherlands. We included 267 patients for content validity and 323 patients for construct validity and responsiveness. The PSFS items were classified into the International Classification of Function Core Set for Hand Conditions to assess content validity. We used hypothesis testing to investigate the construct validity and responsiveness. The Michigan Hand Outcomes Questionnaire was used as a comparator instrument. The standardized response mean was calculated to evaluate the magnitude of change. For discriminative validity, we used independent t tests to discriminate between satisfied and dissatisfied patients. Results: We classified 98% of the PSFS items in the International Classification of Function “activities” and “participation” domains, indicating good content validity. Two of six hypotheses for construct validity and three of six hypotheses for responsiveness were confirmed. The standardized response mean for the PSFS was 0.57 (0.46–0.68) and 0.47 (0.35–0.58) for the Michigan Hand Outcomes Questionnaire total score. The mean PSFS score showed good discriminative validity because it could distinguish between satisfied and dissatisfied patients at the 3-month follow-up. Conclusions: The PSFS scores showed good content and discriminative validity in patients with first carpometacarpal arthritis. Hypothesis testing for responsiveness and construct validity indicates that the PSFS measures a unique construct different from the Michigan Hand Outcomes Questionnaire. Clinical relevance: The PSFS may be a useful scale for measuring the patient-specific status of individuals with thumb carpometacarpal arthritis.
UR - http://www.scopus.com/inward/record.url?scp=85196796662&partnerID=8YFLogxK
U2 - 10.1016/j.jhsa.2024.04.006
DO - 10.1016/j.jhsa.2024.04.006
M3 - Article
C2 - 38934999
AN - SCOPUS:85196796662
SN - 0363-5023
VL - 49
SP - 817
EP - 826
JO - Journal of Hand Surgery
JF - Journal of Hand Surgery
IS - 9
ER -