Abstract
Objective: To evaluate reliability, validity and responsiveness of HOOS-12, a 12-item short form of the 40-item Hip disability and Osteoarthritis Outcome Score (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 (ES), standardized response means (SRM)) 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 ES and SRM standardized response means. 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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 754-761 |
| Number of pages | 8 |
| Journal | Osteoarthritis and Cartilage |
| Volume | 27 |
| Issue number | 5 |
| DOIs | |
| State | Published - May 2019 |
Funding
This research was supported by AHRQ grant R03 HS024632 (Gandek PI) and a FORCE-TJR program project award (P50 HS018910, Franklin PI) to the Department of Orthopedics and Physical Rehabilitation at the University of Massachusetts Medical School. The funding sources did not play any role in the study design, collection, analysis or interpretation of data, in the writing of the manuscript, or in the decision to submit the manuscript for publication. The opinions expressed in this document are those of the authors and do not reflect the official position of AHRQ or the U.S. Department of Health and Human Services. The authors thank Jakob Bjorner, MD, PhD for psychometric consultation; Nina Deng, EdD for developing the relative validity bootstrapping software; Celeste Lemay RN, MPH, Wenyun Yang, MS and Hua Zheng, PhD for data and computer support; and the researchers, clinicians and patients who provided feedback on KOOS and HOOS item content and translations. This research was supported by AHRQ grant R03 HS024632 (Gandek PI) and a FORCE-TJR program project award ( P50 HS018910 , Franklin PI) to the Department of Orthopedics and Physical Rehabilitation at the University of Massachusetts Medical School. The funding sources did not play any role in the study design, collection, analysis or interpretation of data, in the writing of the manuscript, or in the decision to submit the manuscript for publication. The opinions expressed in this document are those of the authors and do not reflect the official position of AHRQ or the U.S. Department of Health and Human Services.
Keywords
- HOOS
- Hip
- Osteoarthritis
- Patient-reported outcome measures
- Psychometrics
ASJC Scopus subject areas
- Biomedical Engineering
- Rheumatology
- Orthopedics and Sports Medicine