Fig. 1
From: Characterizing advanced Parkinson’s disease: OBSERVE-PD observational study results of 2615 patients
Clinical PD assessments in APD versus non-APD patients. a Activities of daily living (UPDRS II) and motor symptom severity (UPDRS III), b dyskinesia duration and disability (UPDRS Part IV Q32 and Q33), c average duration of “Off” time (UPDRS Part IV Q39), and (d) NMS burden and quality of life (PDQ-8). Error bars indicate the standard deviation. p values from a paired t test indicate statistical significance. APD = Advanced Parkinson’s disease; non-APD = Non-advanced Parkinson’s disease; NMSS = Non-motor Symptom Scale; PDQ-8 = Parkinson’s disease 8-item questionnaire; SD = Standard deviation; UPDRS = Unified Parkinson’s Disease Rating Scale