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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: Mov Disord. 2014 Dec 27;30(4):560–566. doi: 10.1002/mds.26117

Figure 1. Correlation between vitamin D from different source with symptom duration.

Figure 1

Correlation between total vitamin D (upper panel), 25(OH)D3 (middle panel) 25(OH)D2 (lower panel), and Parkinson symptom duration are displayed. X-axis displays symptom duration in years, and Y-axis displays plasma vitamin D levels. Solid line represents fitted correlation between vitamin D levels and symptom duration, shadows represent 95% confidence of the fitted correlation, and the dotted lines represent the predication limits of the fitted correlation.