Data-Driven PD Subtype Calculator
Assigns a Parkinson's disease subtype from scale scores and years since diagnosis.
by Ahmed NegidaAdded to the directory Nov 3, 2026
About Data-Driven PD Subtype Calculator
Compares MDS-UPDRS II and III, PIGD/TD ratio, RBDSQ, SCOPA-AUT and MoCA with year-specific 75th-percentile thresholds from 1,030 de novo PPMI patients. It then applies the Fereshtehnejad 2017 rule to classify diffuse malignant, intermediate or mild motor-predominant disease. It accompanies a 2026 Movement Disorders Clinical Practice paper.
What it does
- MDS-UPDRS II and III, PIGD/TD ratio, RBDSQ-13, SCOPA-AUT and MoCA inputs
- PIGD/TD ratio entered or computed from raw items
- Thresholds for years 1–5 after diagnosis
- Channel-by-channel breakdown and motor composite z-score
- DM-PD, IM-PD or MMP-PD by the Fereshtehnejad 2017 rule
- Code and cutoff data on GitHub
