Analytic Framework [PDF – 216 KB] – see Figure 2 on page 553
When starting an effectiveness review, the systematic review team develops an analytic framework. The analytic framework illustrates how the intervention approach is thought to affect public health. It guides the search for evidence and may be used to summarize the evidence collected. The analytic framework often includes intermediate outcomes, potential effect modifiers, potential harms, and potential additional benefits.
The number of studies and publications do not always correspond (e.g., a publication may include several studies or one study may be explained in several publications).
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Electronic literature searches were conducted in MEDLINE (Ovid), Embase, CINAHL, SPORTDiscus, PsycINFO, Campbell, Cochrane, NICE, Sociological Abstracts, AMED, and Enviroline databases. Also reviewed were references listed in all retrieved articles, as well as other identified review articles.
Only articles published in peer-reviewed scientific journals were included. To be included in this review, studies were required to
- Be published from 1998 through 2011
- Present findings of original research published in English
- Be conducted in a high-income economy
- Be consistent with the systematic review development team’s definition for a stand-alone mass media campaign
- Provide information on one or more outcomes related to the analytic framework that included a measure of physical activity
- Compare a group or population exposed to the intervention with a group not exposed or less exposed (comparisons could be concurrent or in the same group over a period of time).
Two abstractors independently read and collected information on each article using an electronic abstraction form. Any disagreements between the reviewers were reconciled by consensus of the two lead scientists of this systematic review.