These efforts have highlighted both the limitations of systematic reviews of effectiveness in explaining the effects of interventions [ 5] and raised interest in synthesis in the interpretive paradigm.
Data sources Medline, Embase, CINAHL, CAB Health, Cochrane central register of controlled trials, the database of abstracts of reviews of effectiveness, and the Cochrane EPOC (effective practice and organisation of care) register (searches updated in April 2011).
We searched the following electronic databases: Medline, Embase, CINAHL, CAB Health, the Cochrane central register of controlled trials (CENTRAL), the database of abstracts of reviews of effectiveness, AMED Allied and Complimentary Medicine (1985 to current), and the Cochrane EPOC (effective practice and organisation of care) register (searches updated in April 2011).
As with reviews of effectiveness, a clearly focused research question is essential in a review of adverse effects.
This report presents the results of systematic reviews of effectiveness, applicability, economic efficiency, barriers to implementation, and other harms or benefits of interventions designed to increase screening for breast, cervical, and colorectal cancers by increasing community demand for these services.
This report presents the results of systematic reviews of effectiveness, applicability, economic efficiency, barriers to implementation, and other harms or benefits of interventions designed to increase screening for breast, cervical, and colorectal cancers by increasing community access to these services.
This review has added value compared with conventional reviews of effectiveness.
This work aims to inform subsequent phase II-IV trials and systematic reviews of effectiveness.
Restricting systematic reviews to include only randomised studies therefore makes sense for reviews of effectiveness.
Three additional systematic reviews of effectiveness were brought to our attention during manuscript submission.
Furthermore, the Cochrane Database and the Database of Abstracts of Reviews of Effectiveness (DARE) were reviewed.
