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Correspondence to: Department of Clinical Pharmacy and Institute for Health Policy Studies, University of California San Francisco, San Francisco, USA [email protected]
All authors contributed to drafting of the review. LB conceived the idea for the study. THH conducted all searches and reviewed the final manuscript. LB and AA screened titles, wrote the final manuscript, and revised the manuscript in response to peer review comments. AA conducted all analyses.
None to declare.
Healthcare outcomes assessed with observational study designs compared with those assessed in randomized trials: a meta‐epidemiological study
Ingrid Toews, Andrew Anglemyer, John LZ Nyirenda, Dima Alsaid, Sara Balduzzi, Kathrin Grummich, Lukas Schwingshackl, Lisa Bero
Revision date
This is the date when the review was published
Description
New search has been performed
New systematic searches were conducted with new search strategies; 35 new records were included; revised approach to statistical analysis; new analyses were conducted; assessment of the evidence with the GRADE approach; conclusions amended; implications revised; team of authors changed: new authors, DAS, JN, KG, LS, SB included; one previous author HH acknowledged.
New citation required but conclusions have not changed
New citations were included in the review, leading to a slight amendment in the findings of the review, but not the conclusion.
Healthcare outcomes assessed with observational study designs compared with those assessed in randomized trials
Andrew Anglemyer, Hacsi T Horvath, Lisa Bero
Revision date
This is the date when the review was published
Description
Healthcare outcomes assessed with non‐experimental designs compared with those assessed in randomised trials
Lisa Bero, Andrew Anglemyer, Tara Horvath
Revision date
This is the date when the review was published
Description
We were unable to conduct subgroup analyses by topic area of the research, or differences in interventions and conditions, as proposed, because these parameters were too diverse to permit grouping of studies. For the same reasons, we were unable to explore the impact of confounding by indication.
