CDC: Asthma becoming more prevalent

 Asthma seems to be increasing a little, and nearly 1 in 12 Americans now say they have the respiratory disease, federal health officials said Wednesday.

About 8.2 percent of Americans had asthma in a 2009 national survey of about 40,000 individuals. That’s nearly 25 million people with asthma, according to a Centers for Disease Control and Prevention report.

The rate had been holding steady at a little under 8 percent for the previous four years.

Better diagnostic efforts could be part of the reason for the increase. They were believed to be a main reason for an increase in asthma seen from 1980 through 1995, said Dr. Lara Akinbami, a medical officer at the CDC’s National Center for Health Statistics.

Asthma is a chronic disease involving attacks of impaired breathing. Symptoms may include coughing, wheezing, and chest pain.

It can be fatal. Health officials estimate more than 3,000 U.S. asthma deaths occur each year.

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