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Weekend effect on 30-day mortality for ischemic and hemorrhagic stroke analyzed using severity index and staffing level

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  • Seung Bin Kim
  • Bo Mi Lee
  • Joo Won Park
  • Mi Young Kwak
  • Won Mo Jang

Abstract

Background and purpose: Previous studies on the weekend effect—a phenomenon where stroke outcomes differ depending on whether the stroke occurred on a weekend—mostly targeted ischemic stroke and showed inconsistent results. Thus, we investigated the weekend effect on 30-day mortality in patients with ischemic or hemorrhagic stroke considering the confounding effect of stroke severity and staffing level. Methods: We retrospectively analyzed data of patients hospitalized for ischemic or hemorrhagic stroke between January 1, 2015, and December 31, 2018, which were extracted from the claims database of the National Health Insurance System and the Medical Resource Report by the Health Insurance Review & Assessment Service. The primary outcome measure was 30-day all-cause mortality. Results: In total, 278,632 patients were included, among whom 84,240 and 194,392 had a hemorrhagic and ischemic stroke, respectively, with 25.8% and 25.1% of patients, respectively, being hospitalized during the weekend. Patients admitted on weekends had significantly higher 30-day mortality rates (hemorrhagic stroke 16.84%>15.55%, p 4.92%, p

Suggested Citation

  • Seung Bin Kim & Bo Mi Lee & Joo Won Park & Mi Young Kwak & Won Mo Jang, 2023. "Weekend effect on 30-day mortality for ischemic and hemorrhagic stroke analyzed using severity index and staffing level," PLOS ONE, Public Library of Science, vol. 18(6), pages 1-15, June.
    • Handle: RePEc:plo:pone00:0283491
    DOI: 10.1371/journal.pone.0283491
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