… headaches in adults, few epidemiological studies are available in children and adolescents,
… ) and only one from combination to school-based populations and population-based. …

… expert consensus group, epidemiological studies in children and adolescents should use a
cross… , population-based studies report an increase in all types of recurrent headaches and a …

… [1], headed towards the 3.2% found in our adult population-based study in Lithuania [19].
We noted in that study that “whatever causes there may be for highly frequent headache, there …

… While there is published evidence of headache-attributed burden among adults in Iran, the
data are not population-based (14 –16). Iran is the second-largest country in the Middle East …

… Our results are consistent with the findings from these epidemiological studies, suggesting
a relationship between low systolic blood pressure and the possibility of a primary …

… -based epidemiological study conducted in Istanbul, we aimed to reveal the frequency of
headaches in … Global Campaign against Headache developed guidelines for population-based …

… (2010) therefore emphasized the importance of population-based studies of headache …
Currently, only one (older) study maps prevalence of pain in Flemish children and adolescents. …

… The aim of the present study was to assess the prevalence of primary headache disorders, …
of adolescents. Herein, we used a cross-sectional design with recruitment of adolescents …

… Study design and study population We used data from the Dutch population-based PIAMA
birth cohort study that has been described in detail elsewhere. Pregnant women were …

… Children and adolescents aged 5–17 years were enrolled in a large cross-sectional Canadian
population–based health survey, completed on January 31, 2019. Headache frequency …