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Article
A 12-item short form of the Hip disability and Osteoarthritis Outcome Score (HOOS-12): tests of reliability, validity and responsiveness
Population and Quantitative Health Sciences Publications
  • Barbara L. Gandek, University of Massachusetts Medical School
  • E. M. Roos, University of Southern Denmark
  • Patricia D. Franklin, University of Massachusetts Medical School
  • John E. Ware, Jr., University of Massachusetts Medical School
UMMS Affiliation
Department of Population and Quantitative Health Sciences
Publication Date
2018-11-10
Document Type
Article
Abstract

OBJECTIVE: To evaluate reliability, validity and responsiveness of Hip disability and Osteoarthritis Outcome Score (HOOS)-12, a 12-item short form of the 40-item HOOS. HOOS-12 provides Pain, Function and Quality of Life (QOL) scale scores and a summary hip impact score.

DESIGN: Data from 1,273 FORCE-TJR hip osteoarthritis (OA) patients who completed HOOS before and six and 12 months after total hip replacement (THR) were analyzed. HOOS-12 includes a pain frequency item and three items measuring pain during increasingly difficult (sitting/lying, walking, stairs) activities; function items about standing, rising from sitting, getting in/out of a car, and walking on an uneven surface; and the 4-item HOOS QOL scale. Percent computable scale scores, floor and ceiling effects, internal consistency reliability, validity (scale correlations, tests of known groups validity using one-way analysis of variance (ANOVA)) and responsiveness (effect sizes, standardized response means) were compared for HOOS-12, full-length HOOS, HOOS-PS and HOOS, JR.

RESULTS: Internal consistency reliability was above 0.70 for all HOOS-12 scales and above 0.90 for the HOOS-12 Summary score. Validity and responsiveness of HOOS-12 Pain, Function and QOL scales were satisfactory and reached similar conclusions as comparable full-length HOOS scales. The HOOS-12 Summary score was highly responsive in discriminating between groups who differed in global ratings of post-THR change in physical capabilities and had high effect sizes and standardized response means (SRM).

CONCLUSIONS: HOOS-12 was a reliable and valid alternative to HOOS in THR patients with moderate to severe OA and provided three domain-specific and summary hip impact scores with substantially reduced respondent burden.

Keywords
  • HOOS,
  • Hip,
  • Osteoarthritis,
  • Patient-reported outcome measures,
  • Psychometrics
DOI of Published Version
10.1016/j.joca.2018.09.017
Source

Osteoarthritis Cartilage. 2018 Nov 10. pii: S1063-4584(18)31515-2. doi: 10.1016/j.joca.2018.09.017. [Epub ahead of print] Link to article on publisher's site

PubMed ID
30419279
Related Resources

Link to Article in PubMed

Citation Information
Barbara L. Gandek, E. M. Roos, Patricia D. Franklin and John E. Ware. "A 12-item short form of the Hip disability and Osteoarthritis Outcome Score (HOOS-12): tests of reliability, validity and responsiveness" (2018) ISSN: 1063-4584 (Linking)
Available at: http://works.bepress.com/john_ware/227/