The prevalence of headache disorders in children and adolescents in Mongolia: a nationwide schools-based study.

Background: The Global Campaign against Headache collects data from children (7-11 years) and adolescents (12-17 years) both to inform health and education policies and to contribute to the Global Burden of Disease (GBD) study. This survey in Mongolia was part of this global enquiry.

Methods: Following the generic protocol for the global enquiry, this was a schools-based cross-sectional survey.