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. 2019 Feb 12;20(1):13. doi: 10.1186/s10194-019-0964-5

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 2 — Prevalence of migraine by age group and gender in the occupational health care register. Migraine was defined as a person having G43*at least once (primary cohort, bars), or one of the following: G43*, triptan prescription, any prescription with migraine in the text field (=ext., extended cohort, lines). Female patients (grey), male patients (black)