Validation of a German version of the NMSS (Non-Motor Symptom assessment Scale)

In addition to motor symptoms, a variety of non-motor symptoms can occur in Parkinson's disease. Non-motor symptoms are often overlooked and are not sufficiently captured by routine assessments. Internationally, the Non-Motor Symptom assessment scale (NMSS) has been widely accepted. In the NMSS 30 questions, covering 9 different non-motor domains, are used to evaluate the intensity of non-motor symptoms. In this study a validated German version of the NMSS is presented. Methods: According to international standards, the original version was translated independently by two bilingual neurologists. Both versions we…