‘Drift down hypothesis’
Commenting on the findings, Fred A. Lado, MD, PhD, director of epilepsy at Northwell Health Eastern and Central Regions, said the increased incidence of comorbidities in patients of low socioeconomic status was not surprising.
“The interesting data here is that we see an even higher incidence among people with epilepsy,” said Dr. Lado, who was not involved with the research.
The study shows how epilepsy exacerbates the effects of low socioeconomic status, he added.
“One of the determinants of socioeconomic status in this case may well be the fact they have seizures and have a limited ability to work and are often more dependent on state assistance and disability support,” Dr. Lado said.
He also referred to the “drift down hypothesis” of chronic disease. “If you have epilepsy and are born into a middle-class family, chances are you will be on disability and can’t work, so you probably have a lower socioeconomic status than your family did as you grew up.”
Dr. Lado noted how “extremely common” mood disorders are in this population and that certain pain syndromes “tracked with those mood disorders.”
“We know mood disorders are more prevalent in people with epilepsy, and now we see that pain-related problems – headache and back pain – are more prevalent in people with epilepsy,” he said.
The data showing “downstream effects of the mood disorders,” from epilepsy to mood disorders to pain disorders, was “very interesting,” Dr. Lado said.
The study was funded by the Centers for Disease Control and Prevention and the National Institute on Minority Health and Health Disparities of the National Institutes of Health. Mr. Bensken has reported receiving research support for this work from the NIH.
A version of this article first appeared on Medscape.com.