Depression Higher in Wealthier Nations07/26/11
TUESDAY, July 26 (HealthDay News) -- Depression rates are higher
in richer countries than in low- or middle-income nations,
according to researchers who compared socioeconomic conditions with
About 121 million people worldwide have depression, which can
harm people's quality of life by affecting their ability to work
and form relationships. Severe depression can lead to suicide and
causes 850,000 deaths every year.
Detailed interviews with more than 89,000 people in 18 nations
revealed that 15 percent of people in high-income countries were
likely to get depression during their lifetime, compared with 11
percent of those in low- or middle-income countries. About 5.5
percent of people in high-income countries had depression within
the previous year.
High-income countries had higher rates of major depression (28
percent vs. 20 percent), and especially high rates (more than 30
percent) were found in the United States, France, the Netherlands
and India. China had the lowest rate of major depression (12
The average age at onset of depression was nearly two years
younger in low-income countries, the investigators found.
Women were twice as likely as men to suffer depression, and the
major contributing factor was loss of a partner because of death,
divorce or separation.
The study, published July 25 in the journal
BMC Medicine, was conducted by researchers at 20 centers in conjunction with the World Health Organization World Mental Health Survey Initiative.
"We have shown that depression is a significant public-health concern across all regions of the world and is strongly linked to social conditions. Understanding the patterns and causes of depression can help global initiatives in reducing the impact of depression on individual lives and in reducing the burden to society," Evelyn Bromet, of the State University of New York at Stony Brook, said in a journal news release.
The U.S. National Institute of Mental Health has more about
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