Stress of Caring for Disabled Spouse Raises Stroke Threat

The stress of caring for a disabled spouse increases the risk of stroke substantially, and the increased risk is greater for husbands than for wives, a new study finds.

"We followed 767 people out of a large study who were caring for a spouse with any disabling condition," says William E. Haley, PhD, a clinical psychologist who is a professor in the School of Aging Studies at the University of South Florida in Tampa. "The spouses who had the highest scores for strain had the highest risk scores for stroke."

Strain was measured on a standard score by asking the participants how many days during the past week they had felt depressed, lonely, sad, or had crying spells. The answers were matched to the Framingham Stroke Risk Score, which measures risk factors such as age, blood pressure, blood cholesterol levels, smoking, and diabetes. The study is published in Stroke.

A high score on the measure of strain was associated with an overall 23% higher risk of stroke. The association was stronger in husbands than in wives. It was highest in black men with high caregiving strain, with a 26.9% increased risk of stroke in the next 10 years.

"We showed that African American men have the highest risk for stroke of any demographic group," Haley says. "The risk is nearly doubled for the highest-strain African-American men," he adds.

"For the most part, when men are caregivers they use more paid services," Haley says. "It's likely that men who are not getting help, African American men in particular, experience tremendous strain. Women are more prepared to be caregivers, and show less risk tied to strain."

It's not clear whether the high-risk scores will result in an increased incidence of stroke, he notes. "We haven't followed enough people for long enough to do that analysis," Haley says. "Over the next several years, we will have the ability to see whether high degrees of strain lead to a higher incidence of stroke and mortality."

— Source: Brigham and Women's Hospital