Designed to Gain Patient and Physician Insight
Asthma Insight and Management 2009 is the largest and most comprehensive survey on asthma and its treatment conducted in more than a decade in the United States. The survey comprises three separate surveys, each based on telephone interviews with national probability samples of three populations:
- This national sample of adults and adolescents (≥12 years of age) with current asthma was obtained by systematically screening a geographically stratified national sample of 60,682 households sampled by random digit dialing
- Current asthma patients were defined as persons who have been diagnosed with asthma and who have either experienced an asthma attack or asthma symptoms in the past year or currently take medication for their asthma
- In households with more than one eligible patient, the computer-assisted telephone interviewing (CATI) system randomly selected one person as the designated patient. If the designated patient was aged 12-17, the adult most knowledgeable about that patient’s asthma and its treatment was interviewed
- A total of 2,500 cases of current asthma, including 2,186 adults (≥18 years of age) with asthma and the parents of 314 children ages 12-17 with asthma, were interviewed
- A national cross-sectional sample of 1,090 adults, 18 years of age or older, in the general public was also sampled by random digit dialing for comparison with the asthma patients
- Adults with current asthma in the cross-sectional sample were eliminated from comparisons with the asthma sample. A total of 1,004 adults without current asthma were left for comparisons of burden of disease with 2,186 adults with asthma from the asthma patient sample
- A sample of physicians was drawn from the American Medical Association (AMA) Master List that is stratified by physician specialty
- 104 allergists, 101 family practice, 54 pulmonologists, and 50 internists were interviewed