Webster Rating Scale for Parkinson’s Disease
Why Use
Quantifies disease severity to facilitate clinical decision-making. Tracks disease progression over time, guiding treatment adjustments and planning. Useful in clinical trials and PD research.
When to Use
Use in patients with suspected or diagnosed Parkinson disease (PD) to assess disease severity. Useful for baseline assessment and follow-up visits to monitor progression over time.
Formula
Pearls / Pitfalls
Has fair to moderate interrater reliability in validation studies due to subjective rating components; training examiners may improve consistency. Provides limited assessment of non-motor symptoms, which are key contributors to PD severity. Should not replace a comprehensive neurologic evaluation.
Advice
Higher scores indicate worsening motor impairment and reduced quality of life. Scores can be monitored over time to guide treatment decisions, including medication adjustments or escalation, eligibility for advanced interventions (e.g., deep brain stimulation), and advanced care planning. Significant or rapid deterioration warrants further evaluation for potential medication side effects, comorbidities, or referral to specialized care (e.g., physical or occupational therapy, movement disorder specialists).
More Information
Interpretation: Score Disability 1-10 Early illness 11-20 Moderate 21-30 Severe or advanced