Despite improvements in air quality and anti-smoking measures, asthma has increased in recent years. About one in 12 Americans are now afflicted by the lifelong respiratory disease, the Centers for Disease Control and Prevention reports.
In a “Vital Signs” bulletin, the CDC said that, for reasons that scientists can’t yet explain, the number of people diagnosed with asthma climbed during 2001-2009 by 12 percent, to roughly 25 million.
“We have to do a better job educating people about managing their symptoms and how to correctly use medicines to control asthma so they can live longer more productive lives while saving health care costs,” CDC Director Dr. Thomas R. Frieden said in a news release. According to the agency, only one third of asthma patients are using long-term therapies such as inhaled corticosteroids.
The report shows that asthma rates climbed among all population groups, with the most dramatic rate increase — almost 50 percent — occurring in black children. Nearly one in six black children now has asthma.
Other recent statistics in the CDC bulletin: 53 percent of people with asthma suffered an asthma attack in 2008, and the disease took the lives of 185 children and 3,262 adults in 2007.
According to Medscape Today, CDC official Paul Garbe recommended in a conference call with reporters that physicians and patients should work together to develop written asthma action plans.
Although scientists are puzzled about why asthma is increasing even as outdoor air quality is improving and smoking is declining, exposure to urban air pollution and certain chemicals might be among the factors.
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