- For Multiple Sclerosis Research
- Participant Driven
- Free to Enroll
Patient Determined Disease Steps (PDDS)
The Patient Determined Disease Steps (PDDS) scale is a self-assessment scale of multiple sclerosis (MS) disease status collected by the North American Research Committee on Multiple Sclerosis (NARCOMS) Registry at enrollment and in semi-annual follow-up surveys.
To learn more about the PDDS, access it for use, and for proper citation of the PDDS, please click here.