The Hip disability and Osteoarthritis Outcome Score (HOOS)-12, a 12-item short form of the 40-item HOOS, is a reliable and valid alternative to HOOS in total hip replacement (THR) patients with moderate to severe osteoarthritis (OA) and provided 3 domain-specific and summary hip impact scores with substantially reduced respondent burden. This according to a recent study that aimed to evaluate reliability, validity, and responsiveness of (HOOS)-12. Data from 1,273 hip OA patients who completed HOOS before and 6 and 12 months after THR were analyzed. Researchers found:
- 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 Quality of Life (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.
Gandek B, Roos EM, Franklin PD, Ware JR. A 12-item short form of the Hip disability and Osteoarthritis Outcome Score (HOOS-12): Tests of reliability, validity and responsiveness. [Published online ahead of print November 9, 2018]. Osteoarthritis Cartilage. doi:10.1016/j.joca.2018.09.017.
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