Using WOMAC Index scores and personal characteristics to estimate Assessment of Quality of Life utility scores in people with hip and knee joint disease
Ilana N Ackerman, Mark A Tacey, Zanfina Ademi, Megan A Bohensky, Danny Liew, Caroline A Brand
QUALITY OF LIFE RESEARCH | SPRINGER | Published : 2014
PURPOSE: To determine whether Assessment of Quality of Life (AQoL) utility scores can be reliably estimated from Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores in people with hip and knee joint disease (arthritis or osteoarthritis). METHODS: WOMAC and AQoL data were analysed from 219 people recruited for a national population-based study. Generalised linear models were used to estimate AQoL utility scores based on WOMAC total and subscale scores and personal characteristics. Goodness of fit was assessed for each model, and plots of prediction errors versus actual AQoL utility scores were used to gauge bias. RESULTS: Each model closely predicted the average AQoL..View full abstract
Awarded by United Pacific Industries Thermoskin Research Grant
Awarded by National Health and Medical Research Council of Australia Public Health (Australian) Early Career Fellowship
We gratefully acknowledge the assistance of Alexandra Gorelik (Senior Statistician, Melbourne EpiCentre) for her statistical advice and constructive feedback. This research was supported in part by a Physiotherapy Research Foundation and United Pacific Industries Thermoskin Research Grant (#T09-THE003). Dr. Ackerman is supported by a National Health and Medical Research Council of Australia Public Health (Australian) Early Career Fellowship (#520004).