Psychometric characteristics of PIMS—Compared to PDQ-39 and PDQL—To evaluate quality of life in Parkinson's disease patients: Validation in Spanish (Ecuadorian style)

ObjectiveAnalyze PIMS (Parkinson's impact scale) properties following the recommendations of the Scientific Advisory Committee of the Medical Outcomes Trust.MethodsAn analytical cross-sectional study to evaluate the psychometric qualities and scale assumptions of PIMS: quality of data, acceptability, reliability, validity, internal consistency, and construct validity.ResultsThe sample included 131 patients with Parkinson's disease (PD), of which 39 (29.7%) were women. Psychometric qualities and scale assumptions, all of them are suitable.ConclusionsWe therefore believe that PIMS is a useful and recommendable specific tool for measuring quality of life in PD patients.