Publications by authors named "Lasse-Marius Honningsvag"
Objective: To examine the relationship between white matter hyperintensities and headache.
Methods: White matter hyperintensities burden was assessed semi-quantitatively using Fazekas and Scheltens scales, and by manual and automated volumetry of MRI in a sub-study of the general population-based Nord-Trøndelag Health Study (HUNT MRI). Using validated questionnaires, participants were categorized into four cross-sectional headache groups: Headache-free (n = 551), tension-type headache (n = 94), migraine (n = 91), and unclassified headache (n = 126).
Background: In four previous clinic-based MRI studies headache sufferers (in particular migraineurs) had more perivascular spaces (PVS) than individuals who were headache-free.
Methods: The present study was part of a large longitudinal, epidemiological study (Nord-Trøndelag Health Survey (HUNT)). The 1006 participants, age 50-65 years at inclusion, had participated in all previous HUNT surveys (1-3), and been randomly selected to a population-based imaging study of the head (HUNT-MRI, 2007-2009).
Background: Most studies on intracranial abnormalities among headache sufferers were performed in selected clinical populations. The aim of this study was to evaluate the relationship between intracranial abnormalities and headache among middle-aged adults in the general population.
Methods: Participants in a large epidemiological study (the HUNT 3 study; 2006-2008) who answered a headache questionnaire and participated in a population-based imaging study of the head (HUNT MRI; 2007-2009) were included (n = 864; age, 50-65 at enrollment).
Background: Bias with regard to participation in epidemiological studies can have a large impact on the generalizability of results. Our aim was to investigate the direction and magnitude of potential bias by comparing health-related factors among participants and non-participants in a MRI-study based on HUNT, a large Norwegian health survey.
Methods: Of 14,033 individuals aged 50-65, who had participated in all three large public health surveys within the Norwegian county of Nord-Trøndelag (HUNT 1, 2 and 3), 1,560 who lived within 45 minutes of travel from the city of Levanger were invited to a MRI study (MRI-HUNT).