Obesity - Risk Factor For Swine Flu

by Gopalan on  November 05, 2009 at 5:24 PM Obesity News
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Obesity - Risk Factor For Swine Flu
A Californian study has found that obesity could be a risk factor for H1N1. Also the flu seemed especially severe on elderly. The study focuses on patients who were hospitalized between April 23 and Aug. 11.

Of 1,088 patients hospitalized with H1N1 flu in California, 11%, or 118 patients, died, and 30%, or 340 patients, were admitted to intensive-care units, Janice Louie, a public-health medical officer at the California Department of Public Health, and her co-authors report in the Journal of the American Medical Association. In patients 50 and older, the death rate was up to 20%, compared with about 2% in hospitalized patients under age 18.

In the first four months of the pandemic, H1N1, like the seasonal flu, was especially severe in older people, who are more likely to have underlying health conditions, says lead author Janice Louie, a public-health medical officer at the California Department of Public Health.

Unlike seasonal flu, though, older people are far less likely than children and young adults to contract the H1N1 flu in the first place. For that reason, the study won't lead the Centers for Disease Control and Prevention to add healthy older people to the list of priority groups for H1N1 vaccine, director Thomas Frieden told reporters Tuesday.

But the obesity angle seems more interesting. Nearly a third of all the hospitalized patients in her study were reported to have no underlying conditions, such as lung disease, associated with an increased risk of flu complications. But a disproportionate number of them were obese, though obesity doesn't appear to be a risk factor for seasonal flu.

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