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Spouse's Illness Can Be Deadly to You

Caretakers of Ill Spouses Have Greater Risk of Death
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WebMD Health News
Reviewed by Louise Chang, MD

Feb. 15, 2006 -- Seniors who care for their seriously ill spouses may pay the ultimate price.

A groundbreaking new study shows that caring for a sick spouse can raise the caretaker's risk of death. For some particularly disabling illnesses -- dementia, in particular -- the toll on the caretaker is worse than the toll of a spouse's death.

It's been known for more than 150 years that the death of a spouse ups the surviving partner's risk of death. Now it's shown that illness, too, can break your heart.

"We showed you can die of a broken heart not just when your partner dies, but when your partner falls ill," researcher Nicholas Christakis, MD, PhD, said in a news conference. "We showed it is not just death that can give you a broken heart, but illness -- even when the spouses don't die."

Christakis, professor health care policy at Harvard Medical School in Boston, and colleagues report the findings in the Feb. 16 issue of The New England Journal of Medicine.

Disabling Outweighs Deadly

Christakis and colleagues analyzed Medicare data on more than half a million couples aged 65 to 98. The average age of men in the study was 75; the average age for women was 73.

The death of a spouse increased a man's risk of death by 21% and a woman's risk of death by 17%. Overall, the illness of a spouse was only one-fifth as deadly to caretakers as the death of a spouse.

But some spousal illnesses took at least as great a toll as death:

  • A spouse's psychiatric illness raised the risk of death by 19% for men and by 32% for women.
  • A spouse's dementia raised the risk of death by 22% for men and by 28% for women.
  • Other diseases that take a heavy toll on caretakers included heart failure, hip fracture or other serious fracture, and chronic lung disease.
  • A spouse's cancer did not increase caretaker death risk.

"It is the disablement and not the lethality of a spouse's illness that can be harmful to you and contribute to your risk of dying," Christakis says.

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