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Box plot representation of total PDSS (Parkinson’s disease sleep scale) scores obtained by patients with Parkinson’s disease (PD) and controls. Box plot.

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Presentation on theme: "Box plot representation of total PDSS (Parkinson’s disease sleep scale) scores obtained by patients with Parkinson’s disease (PD) and controls. Box plot."— Presentation transcript:

1 Box plot representation of total PDSS (Parkinson’s disease sleep scale) scores obtained by patients with Parkinson’s disease (PD) and controls. Box plot representation of total PDSS (Parkinson’s disease sleep scale) scores obtained by patients with Parkinson’s disease (PD) and controls. PD patients are grouped into early/moderate PD (Hoehn and Yahr scores between 1 and 3) and advanced PD (4 to 5). Square denotes the mean values; lines denote the median values; box denotes specific interquartile range. Maximum and minimum scores are indicated by the upper and lower markers, respectively. K R Chaudhuri et al. J Neurol Neurosurg Psychiatry 2002;73: ©2002 by BMJ Publishing Group Ltd

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