SPES/SCOPA and MDS-UPDRS: formulas for converting scores of two motor scales in Parkinson's disease

Parkinsonism Relat Disord. 2011 Sep;17(8):632-4. doi: 10.1016/j.parkreldis.2011.05.022. Epub 2011 Jun 22.

Abstract

Background: Motor impairment in Parkinson's disease (PD) can be evaluated with the Short Parkinson's Evaluation Scale/Scales for Outcomes in Parkinson's disease (SPES/SCOPA) and the Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS). The aim of this study was to determine equation models for the conversion of scores from one scale to the other.

Methods: 148 PD patients were evaluated with the SPES/SCOPA-motor and the MDS-UPDRS motor examination. Linear regression was used to develop equation models.

Results: Scores on both scales were highly correlated (r = 0.88). Linear regression revealed the following equation models (explained variance: 78%):

Conclusion: With the equation models identified in this study, scores from SPES/SCOPA-motor can be converted to scores from MDS-UPDRS motor examination and vice versa.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Disability Evaluation
  • Female
  • Humans
  • Male
  • Middle Aged
  • Motor Skills / physiology*
  • Movement Disorders / diagnosis
  • Movement Disorders / physiopathology
  • Parkinson Disease / diagnosis*
  • Parkinson Disease / physiopathology*
  • Severity of Illness Index*
  • Weights and Measures / standards*