FIG. 1.

Variation in non‐motor symptoms according to NMSS and a battery of separate scales. NMSS, Non‐motor symptoms scale; MoCA, Montreal cognitive assessment scale; SCOPA, scale for outcomes in Parkinson's disease; SCOPA daytime, daytime sleepiness; SCOPA night‐time, night‐time sleep complaints; RBD, REM sleep behavior disorder; RSBDSQ, REM Sleep Behavior Disorder Screening Questionnaire; HADS, Hospital Anxiety and Depression Scale; AS, Apathy Scale; PPQ, Parkinson's Psychosis Questionnaire. For comparison, scale scores were normalized ([value‐minimum]/[maximum‐minimum]), varying from 0 to 1. Values in graphic represent means. *****p<0.0001; ***p<0.005