Asthma Survey Questions
Introduction
Although there are a number of different sources for prevalence data, surveys are among the sources most commonly used for asthma prevalence. Each survey, however, may have questions that are worded slightly differently, or a survey may change wording from year to year. Wording differences are very important when performing analyses because the differences can affect how respondent answer the question and, therefore, the value of the prevalence measure. The links below will take you directly to the asthma questions as they were worded each year for the listed surveys. A direct link to the specific survey's home page is also provided.
- Behavioral Risk Factor Surveillance System (BRFSS)
- International Study of Asthma and Allergies in Childhood (ISAAC)
- National Asthma Survey (NAS)
- National Longitudinal Surveys (NLS)
- National Health and Nutrition Examination Survey (NHANES)
- National Health Interview Survey (NHIS)
- National Survey of Children's Health (NSCH)
- Page last reviewed: April 24, 2009
- Page last updated: April 27, 2009
- Content source: National Center for Environmental Health
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