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Objective
To examine the effect of an employer‐mandated switch to high‐deductible health plans (HDHP) on emergency department (ED) low‐value imaging.
Data Sources
Claims data of a large national insurer between 2003 and 2014.
Study Design
Difference‐in‐differences analysis with matched control groups.
Data Collection/Extraction Methods
The primary outcome is low‐value imaging during ED visits...
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