The main aim of the present study was to do an update on studies on headache
epidemiology as a preparation for the multinational European study on the prevalence and …

Abstract Study Objectives: To investigate the incidence, persistence, and consequences of
insomnia and their associations with psychological health and pain. Design: A population …

Objective.—To investigate the associations of headache occurrence, severity, and frequency
with psychological, sleep, and lifestyle characteristics, and comorbid conditions …

Headache prevalence, characteristics and impact in adults were measured using a cross-
sectional general population survey in North Staffordshire, UK. A postal survey was mailed …

The objective of this study was to determine predictors of onset of new headache episodes
and recovery from headache over one year. A population-based cohort study was …

We developed a 103-item self-reporting questionnaire to assess the burden of primary
headache disorders on those affected by them, including headache characteristics …

Background Questionnaire-based headache diagnoses should be validated against
diagnoses made by the gold standard, which is personal interview by a headache expert …

Background There is a lack of up-to-date information on the prevalence and burden of
headache in Norway. Here we describe the methods and validation of the diagnostic tool of …

Using data from a cross-sectional survey and a prospective record linkage study the aims of
this study were to:(i) determine sources of advice and care for headaches in a population …

Objective.—To investigate variation in headache occurrence and characteristics over 1 year.
Background.—Headache is a common condition which can affect the work, home, and …