• Study
  • Published June 2016

Outcomes are worse in US patients undergoing surgery on weekends compared with weekdays.

The weekend effect, in which patient outcomes are worse outside of usual business hours, is well-documented across multiple care settings. Analyzing administrative data, this study found a higher rate of complications in both urgent and elective surgery on the weekend compared to the weekdays. This finding emphasizes the need to develop and test strategies to enhance safety on evenings and weekends in acute care settings.

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