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. 2020 Dec 3;41(1):6–16. doi: 10.1177/0333102420973994

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© International Headache Society 2020

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — Monthly and overall rates of reversion from chronic migraine to episodic migraine during the double-blind treatment phase.

*p < 0.001 compared with placebo.

^†p = 0.003 compared with placebo.

^‡Odds ratio (95% CI) versus placebo.