A Short Progressive Supranuclear Palsy Quality of Life Scale

Abstract

ObjectiveThe Progressive Supranuclear Palsy quality of life scale (PSP‐QoL) has been shown to be a useful tool for capturing health‐related quality of life of patients in “everyday life” and in progressive supranuclear palsy (PSP) research. However, at 45 items in length, the questionnaire can take a long time, exhausting PSP patients, in particular if cognitive impaired, which can have a negative impact on the assessment. The aim of this study was to establish a condensed version of the PSP‐QoL for research and routine clinical care.MethodsIn this retrospective study, data originating from a German cohort of PSP patients was analyzed. Data from 245 PSP patients were included in this study. The short PSP‐QoL questionnaire was created using a two‐factor solution and item‐total and inter‐item correlations for mental and physical aspects of daily living of the PSP‐QoL followed by confirmatory factor analysis.ResultsThe final scale included 12 items representing mental (five items) and physical symptoms (seven items). The specified two‐factor model displayed an excellent fit in the confirmatory factor analysis. The short Progressive Supranuclear Palsy Quality of Life scale (PSP‐ShoQoL) correlated moderately with the PSP Rating Scale (r [243] = 0.514, P < 0.001) and Geriatric depression scale (r [231] = 0.548, P < 0.001). Sensitivity to change confirmed a significant decrease in QoL after 12 months.DiscussionIn this study, we created a 12‐item PSP‐ShoQoL designed to “facilitate” daily clinical work that correlated strongly with the PSP‐QoL and was sensitive to change. © 2024 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.