• Medical care · Jun 2014

    Elective, major noncardiac surgery on the weekend: a population-based cohort study of 30-day mortality.

    • Daniel I McIsaac, Gregory L Bryson, and Carl van Walraven.
    • *Department of Anesthesiology, University of Ottawa †Ottawa Hospital Research Institute, The Ottawa Hospital, Ottawa, ON.
    • Med Care. 2014 Jun 1;52(6):557-64.

    ImportancePrevious research has demonstrated that patients undergoing elective surgery on the weekend had an adjusted risk of 30-day mortality that was significantly higher than that of patients operated upon during the week. The generalizability of this association and effect size is unknown.ObjectivesThe aim of this study was to investigate the generalizability of the association between elective weekend surgery and increased 30-day postoperative mortality.Research DesignA retrospective, propensity score-matched cohort analysis of linked population-based health administrative data was carried out.SubjectsIndividuals undergoing elective, intermediate, intermediate-risk to high-risk all describe the noncardiac surgery exposure at all acute care hospitals in Ontario, Canada, between 2002 and 2012 were included.ExposureElective surgery was performed on the weekends.MeasuresAll-cause mortality was measured within 30 days of the operation.ResultsA total of 333,344 patients were studied, of whom 2826 died within 30 days of surgery (overall crude mortality rate 8.5 deaths per 1000). Weekend elective surgery was performed on 2520 patients, of whom 2518 were successfully propensity score matched to weekday surgical patients. Undergoing elective surgery on the weekend was associated with a 1.96 times higher odds of 30-day mortality than weekday surgery (95% confidence interval, 1.36-2.84) in a propensity-matched analysis. This significant increase in the odds of postoperative mortality was confirmed using a multivariable logistic regression analysis (odds ratio 1.51; 95% confidence interval, 1.19-1.92).ConclusionsSimilar to previous studies in distinct health care systems, patients in Ontario undergoing elective surgery on the weekend experienced an increased risk of 30-day postoperative mortality. Mechanisms underlying this effect require further study.

      Pubmed     Full text   Copy Citation     Plaintext  

      Add institutional full text...

    Notes

     
    Knowledge, pearl, summary or comment to share?
    300 characters remaining
    help        
    You can also include formatting, links, images and footnotes in your notes
    • Simple formatting can be added to notes, such as *italics*, _underline_ or **bold**.
    • Superscript can be denoted by <sup>text</sup> and subscript <sub>text</sub>.
    • Numbered or bulleted lists can be created using either numbered lines 1. 2. 3., hyphens - or asterisks *.
    • Links can be included with: [my link to pubmed](http://pubmed.com)
    • Images can be included with: ![alt text](https://bestmedicaljournal.com/study_graph.jpg "Image Title Text")
    • For footnotes use [^1](This is a footnote.) inline.
    • Or use an inline reference [^1] to refer to a longer footnote elseweher in the document [^1]: This is a long footnote..

    hide…