Older women appear more susceptible to depression and more likely to stay depressed but less likely to die while depressed than older men, factors that contribute to the higher burden of depression among older women, according to a report in the February issue of Archives of General Psychiatry, one of the JAMA/Archives journals.
Major depression affects approximately 1 percent to 2 percent of older adults living in the community, but as many as 20 percent experience symptoms of depression, according to background information in the article. These symptoms are more likely to affect older women than older men for reasons that are unclear.
Lisa C. Barry, Ph.D., M.P.H., of Yale University School of Medicine, New Haven, Conn., and colleagues evaluated a group of 754 individuals age 70 and older (average age 78.4) beginning in 1998. At the beginning of the study and at follow-up assessments conducted every 18 months, participants were asked to provide demographic information, take cognitive tests and report any medical conditions. They also were screened for symptoms of depression—such as lack of appetite, feeling sad or sleep problems—during the previous week.
Over the course of the study, 269 (35.7 percent) of the participants were depressed at some point. Of those, 48 (17.8 percent) remained depressed during two consecutive time periods, 30 (11.2 percent) at three time points, 17 (6.3 percent) at four points and 12 (4.5 percent) at all five. More women than men were depressed at each 18-month follow-up and women were more likely than men to experience depression at subsequent time points. “Adjusting for other demographic characteristics, women had a higher likelihood of transitioning from non-depressed to depressed and a lower likelihood of transitioning from depressed to non-depressed or death,” the authors write.
Source: JAMA and Archives Journals
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