ArticlePloS one2023
Weekend effect on 30-day mortality for ischemic and hemorrhagic stroke analyzed using severity index and staffing level.
Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effect of off-hours admission on in-hospital mortality in sub-Saharan Africa: a systematic review and meta-analysis.Journal of health, population, and nutrition · 2026Pooled it
- The weekend effect in sepsis and septic shock: a 5-year US national study.Proceedings (Baylor University. Medical Center) · 2026Article
- Is there a "weekend effect" in adenoma detection rate?A single-center retrospective study.PloS one · 2026Article
- No Weekend Effect in Elective Primary Total Knee Arthroplasty: A Nationwide Analysis of 437,121 U.S. Cases.Journal of clinical medicine · 2025Article
- A scoping review of work patterns of junior medical officer tasks in hospital out of hours.Internal medicine journal · 2025Article
- Is there a weekend effect in severe traumatic brain Injury? An observational, population-based study from the Norwegian Trauma registry.Brain & spine · 2025Article
- Article
- Association between weekend admission and in-hospital mortality for patients with ischemic heart disease upon surgery treatment.Frontiers in cardiovascular medicine · 2024Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
background and purposePrevious 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.
methodsWe 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.
resultsIn 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<0.0001; ischemic stroke 5.06%>4.92%, p<0.0001). However, in the multi-level logistic regression analysis adjusted for case-mix, pre-hospital, and hospital level factors, the weekend effect remained consistent in patients with hemorrhagic stroke (odds ratio [OR] 1.05, 95% confidence interval [CI] 1.00-1.10), while the association was no longer evident in patients with ischemic stroke (OR 1.01, 95% CI 0.96-1.06).
conclusionsWeekend admission for hemorrhagic stroke was significantly associated with a higher mortality rate after adjusting for confounding factors. Further studies are required to understand factors contributing to mortality during weekend admission.
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