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Comment & Response
April 18, 2017

Factors Contributing to the Weekend Effect

Author Affiliations
  • 1Epidemiological Department, Veneto Region, Padova, Italy
  • 2Department of Internal Medicine, Hospital of Ferrara, Ferrara, Italy
  • 3Department of Medical Sciences, University of Ferrara, Ferrara, Italy
JAMA. 2017;317(15):1582. doi:10.1001/jama.2017.2424

To the Editor The Viewpoint by Dr Black1 discussed recent high-quality studies from the United Kingdom about emergency admissions or admissions for stroke that did not demonstrate higher mortality for weekend hospitalizations. Previous findings, based on administrative databases, could be attributed to coding errors and inadequate adjustment for disease severity and comorbidities. He acknowledged that the so-called weekend effect could affect other measures of the quality of care but does not result in an increased risk of mortality.1

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