Counter-Point: Early Warning Systems Are Imperfect, but Essential.

Med Care

Department of Medicine, Division of Pharmacoepidemiology and Pharmacoeconomics, Harvard Medical School and Brigham and Women's Hospital, Boston, MA.

Published: May 2018

Sequential analysis can be used as an early warning system about potential unintended consequences of health policy decisions, generating follow-up investigations, but it should not be used as causal evidence.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5898645PMC
http://dx.doi.org/10.1097/MLR.0000000000000896DOI Listing

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