Asthma is becoming an epidemic in the United States. The number of Americans diagnosed with asthma grows annually, with 26 million currently affected.
Astonishing that 75 percent of asthmatic adults aged 20- to 40-years-old, and 65 percent of asthmatic adults aged 55 years and older, have at least one allergy.
Allergists have known the prevalence of allergies among asthmatic children is high at 60 to 80 percent, but it was thought allergies were not as common in asthmatic adults.
A total of 2,573 adults were studied in a National Health and Nutrition Examination Survey (NHANES). A panel of 19 allergens was used to detect allergy among asthmatics.
While asthma is frequently associated with children, it is not uncommon among adults 60 years and older, affecting three to seven percent. This number is likely higher, however, because asthma is often underdiagnosed in older adults.