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Literature Review

  • It was desired that the asthma intervention would have had a rigorous evaluation design (preferably a randomized control study design), with other approaches (e.g., pre-post and cohort studies) appropriate in certain situations. However, the reality of existing intervention research required some flexibility regarding study design in the identification of effective interventions.
  • The intervention was required to have resulted in positive health outcomes.
  • An article reporting the intervention research methods and results had to have been accepted for publication or already published in a peer-reviewed journal.

Case Studies

To provide professionals seeking appropriate asthma interventions with “real-life” experiences, a case-study approach was used. Very few of the interventions identified continued to be implemented after the intervention research was completed. The development of a case study was dependent on the existence of a site currently implementing the intervention with reasonable fidelity to the original research and our awareness of that implementation. When multiple sites were available for case study for any one intervention, the organization owning that particular program (e.g. the American Lung Association for Open Airways) was consulted regarding which site would be the most appropriate and the most interested in sharing their experiences. The case study approach included document review, site visits, and in-depth interviews with individual staff members participating in the intervention activities and, when possible, telephone interviews with the original researchers.

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