German version of the Chedoke McMaster arm and hand activity inventory (CAHAI-G): intra-rater reliability and responsiveness

Abstract

Background

The English version of the Chedoke Arm and Hand Activity Inventory is a validated, upper-limb measure with the purpose of assessing functional recovery of the arm and hand after a stroke. A German translation and cross-cultural adaptation was recently produced and demonstrated high validity, inter-rater reliability and internal consistency. As a follow-up, the present study evaluated the intra-rater reliability and responsiveness of the CAHAI-G for the long and all shortened versions.

Methods

The CAHAI-G and the Action Research Arm Test were assessed on three different measurement events: upon entry (ME1), two to 3 days after entry (ME2), and after three to 4 weeks (ME3). For the intra-rater reliability analysis, the ME1 CAHAI assessments were recorded on video and rated by three therapists to obtain the intraclass coefficients (ICC). The data of all three MEs were analysed in a group of stroke inpatients for the evaluation of responsiveness. To test for responsiveness, the CAHAI-G change data were compared to concurrent instruments: The Global Rating of Change-questionnaire and the Global Rating of Concept-questionnaire. Both served as external criteria. For all CAHAI-G versions (7, 8, 9 or 13 items), the same analysis procedures for the evaluation of the responsiveness parameter were performed.

Results

In total, 27 patients (9 females, age 63 ± 13.7) were enrolled in the study. The ICCs for the intra-rater reliability were calculated to be between 0.988 and 0.998 for all CAHAI versions. Responsiveness parameters were as follows from CAHAI-G 7 to 13: Minimal Detectable Change (MDC ₉₀₎ 5.3, 6.0, 6.1, 8.2; Pearson’s correlation coefficients CAHAI-Gs with ARAT 0.365, 0.409 ^*, 0.500 ^**, 0.597 ^**. The Area und Under the Curve and the Minimal Clinical Important Difference values for all CAHAI-G versions and the three external criteria ranged between 0.483 to 0.603 and 2.5 to 9.0, respectively.

Conclusion

In addition to the high validity, inter-rater reliability and internal consistency, the CAHAI-G revealed high intra-rater reliability. The data also suggest an adequate responsiveness of the CAHAI-G versions 9 and 13.

Contributors

Frank Behrendt:

ORCID: http://orcid.org/0000-0001-6967-0000

[e-mail]

Journal

Journal ID (nlm-ta): Health Qual Life Outcomes

Journal ID (iso-abbrev): Health Qual Life Outcomes

Title: Health and Quality of Life Outcomes

Publisher: BioMed Central (London )

ISSN (Electronic): 1477-7525

Publication date (Electronic): 23 July 2020

Publication date PMC-release: 23 July 2020

Publication date Collection: 2020

Volume: 18

Affiliations

[1 ]GRID grid.477815.8, ISNI 0000 0004 0516 1903, Research Department, , Reha Rheinfelden, ; Rheinfelden, Switzerland

[2 ]GRID grid.424060.4, ISNI 0000 0001 0688 6779, Institute for Rehabilitation and Performance Technology, , Bern University of Applied Sciences, ; Burgdorf, Switzerland

[3 ]GRID grid.6612.3, ISNI 0000 0004 1937 0642, Department of Sport, Exercise and Health, , University of Basel, ; Basel, Switzerland

Article

Publisher ID: 1499

DOI: 10.1186/s12955-020-01499-6

PMC ID: 7379810

PubMed ID: 32703292

Copyright statement: © The Author(s) 2020

License:

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Categories

Subject: Research

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