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Fig. 4 | The Journal of Headache and Pain

Fig. 4

From: The effects of vitamin D supplementation on interictal serum levels of calcitonin gene-related peptide (CGRP) in episodic migraine patients: post hoc analysis of a randomized double-blind placebo-controlled trial

Fig. 4

a The Correlation between changes in serum 25OHD and number of headache days per month throughout 12-week trial. b The Correlation between changes in serum 25OHD and migraine related disability score (MIDAS, migraine Disability Assessment score) throughout 12-week trial. c The Correlation between changes in serum 25OHD and CGRP (calcitonin gene-related peptide) levels throughout 12-week trial

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