Comparison of early-, late-, and non-participants in a school-based asthma management program for urban high school students

BACKGROUND: To assess bias and generalizability of results in randomized controlled trials (RCT), investigators compare participants to non-participants or early- to late-participants. Comparisons can also inform the recruitment approach, especially when working with challenging populations, such as...

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Autori principali: Joseph, Christine LM, Saltzgaber, Jacquelyn, Havstad, Suzanne L, Johnson, Christine C, Johnson, Dayna, Peterson, Edward L, Alexander, Gwen, Couper, Mick P, Ownby, Dennis R
Natura: Artigo
Lingua:Inglês
Pubblicazione: BioMed Central 2011
Soggetti:
Research
Accesso online:https://ncbi.nlm.nih.gov/pmc/articles/PMC3126736/
https://ncbi.nlm.nih.gov/pubmed/21645394
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1186/1745-6215-12-141
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