Abstract
We found little evidence that estimates of treatment effects in observational studies reported after 1984 are either consistently larger than or qualitatively different from those obtained in randomized, controlled trials.
Keywords
Observational studyRandomized controlled trialMedicineMeta-analysisInternal medicine
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Publication Info
- Year
- 2000
- Type
- article
- Volume
- 342
- Issue
- 25
- Pages
- 1878-1886
- Citations
- 2311
- Access
- Closed
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Cite This
Kjell Benson,
Arthur J. Hartz
(2000).
A Comparison of Observational Studies and Randomized, Controlled Trials.
New England Journal of Medicine
, 342
(25)
, 1878-1886.
https://doi.org/10.1056/nejm200006223422506
Identifiers
- DOI
- 10.1056/nejm200006223422506