Observational studyMedicine2016
"Weekend effect" on stroke mortality revisited: Application of a claims-based stroke severity index in a population-based cohort study.
Observational study in Medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.
What it found
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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.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
16 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Association of Off-Hour Admission With Treatment Delay and Unfavorable Outcomes in Patients With Stroke: A Systematic Review and Meta-Analysis.Journal of the American Heart Association · 2026Pooled it
- Delayed door to puncture time during off-duty hours is associated with unfavorable outcomes after mechanical thrombectomy in the early window of acute ischemic stroke.BMC neurology · 2024Article
- Weekend effect on 30-day mortality for ischemic and hemorrhagic stroke analyzed using severity index and staffing level.PloS one · 2023Article
- The weekend effect in stroke mortality: evidence from Austrian acute care hospitals.International journal of health economics and management · 2022Article
- Effect of weekend admission on geriatric hip fractures.World journal of orthopedics · 2020Article
- Home-Time as a Surrogate Measure for Functional Outcome After Stroke: A Validation Study.Clinical epidemiology · 2020Article
- The weekend effect revisited: evidence from the Upper Austrian stroke registry.The European journal of health economics : HEPAC : health economics in prevention and care · 2019Article
- Article
- Holiday Season and Weekend Effects on Stroke Mortality: A Nationwide Cohort Study Controlling for Stroke Severity.Journal of the American Heart Association · 2019Article
- "Weekend Effect" on 30-Day Readmissions among Stroke Survivors: An Analysis of the National Readmission Database.Cerebrovascular diseases extra · 2019Article
- Who elects the weekend?PLoS medicine · 2019Article
- Taiwan's National Health Insurance Research Database: past and future.Clinical epidemiology · 2019Review
- Modelling care quality for patients after a transient ischaemic attack within the US Veterans Health Administration.BMJ open quality · 2019Article
- Different utilization of intensive care services (ICSs) for patients dying of hemorrhagic and ischemic stroke, a hospital-based survey.Medicine · 2018Article
- Development of a novel information and communication technology system to compensate for a sudden shortage of emergency department physicians.Scandinavian journal of trauma, resuscitation and emergency medicine · 2017Observational
- Validity of a stroke severity index for administrative claims data research: a retrospective cohort study.BMC health services research · 2016Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Previous studies have yielded inconsistent results on whether weekend admission is associated with increased mortality after stroke, partly because of differences in case mix. Claims-based studies generally lack sufficient information on disease severity and, thus, suffer from inadequate case-mix adjustment. In this study, we examined the effect of weekend admission on 30-day mortality in patients with ischemic stroke by using a claims-based stroke severity index.This was an observational study using a representative sample of the National Health Insurance claims data linked to the National Death Registry. We identified patients hospitalized for ischemic stroke, and examined the effect of weekend admission on 30-day mortality with vs without adjustment for stroke severity by using multilevel logistic regression analysis adjusting for patient-, physician-, and hospital-related factors. We analyzed 46,007 ischemic stroke admissions, in which weekend admissions accounted for 23.0%. Patients admitted on weekends had significantly higher 30-day mortality (4.9% vs 4.0%, P < 0.001) and stroke severity index (7.8 vs 7.4, P < 0.001) than those admitted on weekdays. In multivariate analysis without adjustment for stroke severity, weekend admission was associated with increased 30-day mortality (odds ratio (OR), 1.20; 95% confidence interval [CI], 1.08-1.34). This association became null after adjustment for stroke severity (OR, 1.07; 95% CI, 0.95-1.20).The "weekend effect" on stroke mortality might be attributed to higher stroke severity in weekend patients. While claims data are useful for examining stroke outcomes, adequate adjustment for stroke severity is warranted.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.