These maps are collations of published prevalence data put together early in the Campaign [reference 1].

They include all population-based studies published in English of 500 or more respondents and applying IHS diagnostic criteria or reasonable modifications of these.

Reference

1. Stovner L et al. The global burden of headache: a documentation of headache prevalence and disability worldwide. Cephalalgia 2007; 27: 193-210. [view document]

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