NEW YORK, July 2 -- Showing evidence of a link between environmental factors and migraine, investigators here found that a higher family income may protect certain adolescents against migraine.
Children from families with an annual household income of ,000 or more had a 50% lower occurrence rate of migraine compared with children from households with an annual income less than ,500, researchers in a multicenter study reported in the July 3 issue of Neurology.
Yet the disparity was only in children who did not have family history of migraine. Income had no influence on migraine in families with a hereditary predisposition to the condition.
"This finding is consistent with the social causation but not the social selection hypothesis, because adolescents make a small contribution to household income," concluded the team led by Marcelo Bigal, M.D., of the Albert Einstein College of Medicine.
