Detailled Information

Gandek B, Roos EM, Franklin PD, Ware JE Jr. Item selection for 12-item short forms of the Knee injury and Osteoarthritis Outcome Score (KOOS-12) and Hip disability and Osteoarthritis Outcome Score (HOOS-12). Osteoarthritis Cartilage. 2019 May;27(5):746-753

A 12-item short form of the Hip disability and Osteoarthritis Outcome Score (HOOS-12): tests of reliability, validity and responsiveness

Implications for research and clinical use from a Rasch analysis of the HOOS-12 and KOOS-12 instruments

Performance of the HOOS-12 and KOOS-12 instruments for evaluating outcomes from joint replacement surgery

Does change in language change the properties of a shortened score previously validated in its complete version? Validation of the French versions of the HOOS-12 and KOOS-12 scores in primary knee and hip arthroplasties.

HOOS-12 is a 12-item measure derived from the original Hip disability and Osteoarthritis Outcome Score (HOOS). HOOS-12 contains 4 Pain items, 4 Activities of Daily Living and Sport/Recreation items, and 4 Quality of Life (QOL) items.

HOOS-12 is intended to elicit people’s opinions about the difficulties they experience due to problems with their hip and covers aspects of pain, functional limitations and hip-related quality of life.

HOOS-12 Pain, Function and QOL scale scores are calculated using the method of summated ratings, in which item responses in a scale are simply summed. At least half of the items (i.e. a minimum of 2 items) in a scale must be answered to calculate a scale score, and a person-specific estimate is imputed for any missing item data

HOOS-12 reduces respondent burden by 70% from the original HOOS while providing scale scores for hip-specific Pain, Function and QOL, along with a summary measure of overall hip impact.