Obesity associated with increased risk of severe seasonal influenza (not just H1N1) - PulmCCM
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Aug 232011
 

Obesity was named as a risk factor for severe H1N1 influenza during the pandemic. What about for influenza in general?

Kwong et al analyzed community survey data in Ontario over 12 influenza seasons, 1996-2008. Severe obesity (BMI >= 35) carried an odds ratio of 2.1 for respiratory hospitalization during flu season. In those with no other identifiable risk factors besides severe obesity, the odds ratio was 5 (compared to non-obese controls). “Ordinary” obesity (BMI 30-34.9) had an odds ratio of 1.45. Authors suggest the obese be targeted more assertively in vaccination campaigns.
sept 1. Clin Infect Dis 2011;53:413-421.

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