An in-Depth Look at the Non Motor Symptom Scale

To provide a fast and reliable tool to measure the whole burden of non-motor symptoms in Parkinson’s disease The Non-Motor Symptoms Scale (NMSS) was developed in 2006 to provide clinicians with an instrument for assessment of non-motor symptoms (NMSs) in patients with Parkinson’s disease (PD) [1]. This validated instrument categorizes NMSs into 30 questions in nine domains. The scale estimates the impact of NMSs by weighing each symptom by frequency and severity, thus capturing their global burden for patients.