ArticleCMAJ open2014
Site of hospital readmission and mortality: a population-based retrospective cohort study.
Article in CMAJ open, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.
What it found
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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
31 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Patient Outcomes Following Interhospital Care Fragmentation: A Systematic Review.Journal of general internal medicine · 2020Pooled it
- Effectiveness of Postdischarge Telephone Calls in Reducing Hospital Utilization: Quasi-Randomized Controlled Trial.Journal of medical Internet research · 2026Trial
- Effects of a standardized community health worker intervention on hospitalization among disadvantaged patients with multiple chronic conditions: A pooled analysis of three clinical trials.Health services research · 2020Trial
- Trends in General Internal Medicine Patient and Care Complexity from 2017 to 2022 Across 21 Hospitals.Journal of general internal medicine · 2026Article
- Antibiotic Use in Patients with Acute Exacerbations of Chronic Obstructive Pulmonary Disease: A Multicenter Retrospective Cohort Study.Journal of general internal medicine · 2026Article
- Characteristics and Outcomes of Adults Hospitalized With Childhood-Onset Complex Chronic Conditions.JAMA network open · 2026Article
- Clarithromycin Versus Azithromycin for Community-Acquired Pneumonia and the Risk of Major Adverse Cardiovascular Events: A Multicentre Cohort Study Using Data From Canada and Denmark.Pharmacoepidemiology and drug safety · 2025Observational
- Community-acquired Pneumonia in People With HIV During the Current Era of Effective Antiretroviral Therapy: A Multicenter Retrospective Cohort Study.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2025Article
- Advancing a virtual home hospital: a blueprint for development and expansion.BMJ open quality · 2024Article
- Incidence and predictors of unplanned 30-day hospital readmissions among heart failure patients in Ethiopia: a 5-year retrospective cohort study.Scientific reports · 2024Article
- Article
- Ambulance use and subsequent fragmented hospital readmission among older adults.Journal of the American Geriatrics Society · 2023Article
- Article
- Association of distance between hospitals and volume of shared admissions.BMC health services research · 2022Article
- Outcomes in patients with and without disability admitted to hospital with COVID-19: a retrospective cohort study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2022Article
- Physician Financial Incentives to Reduce Unplanned Hospital Readmissions: an Interrupted Time Series Analysis.Journal of general internal medicine · 2021Observational
- Variations in Processes of Care and Outcomes for Hospitalized General Medicine Patients Treated by Female vs Male Physicians.JAMA health forum · 2021Article
- Article
- Characteristics and outcomes of hospital admissions for COVID-19 and influenza in the Toronto area.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2021Article
- Article
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundUnplanned hospital readmission is a complex process, particularly if the patient is readmitted to an acute care institution other than the original hospital. This study tested the hypothesis that readmission to an alternative hospital is associated with increased mortality compared with readmission to the original hospital.
methodsWe performed a population-based retrospective cohort analysis set between 1995 and 2010 for all 21 acute care adult general hospitals in the Greater Toronto and Hamilton Area. Participants were consecutive adults (age ≥ 18 yr) readmitted through the emergency department within 30 days after hospital discharge. The primary outcome measure was all-cause mortality within 30 days after readmission.
resultsOf the 198 149 patients included in the study, 38 134 (19.2%) died within 30 days after readmission. Patients readmitted to an alternative hospital were more likely than those readmitted to the original hospital to be older, reside in a chronic-care facility and arrive by ambulance. Alternative-hospital readmission was associated with a higher risk of death within 30 days (22.3% v. 18.6%, p < 0.001; odds ratio [OR] 1.26, 95% confidence interval [CI] 1.23-1.30). The increased risk was substantially less after adjustment for patient- and hospital-level covariables (adjusted OR 1.06, 95% CI 1.02-1.10). Unadjusted Kaplan-Meier survival curves separated early and the absolute difference in mortality continued throughout the entire 1-year follow-up period, but no difference between groups was observed based on adjusted survival analyses.
interpretationAmong patients readmitted within 30 days after discharge, readmission to an alternative hospital was associated with a higher risk of death than readmission to the original hospital. Whether this adverse prognosis reflects a true causal relation or residual confounding is unknown.
Identifiers
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Registered trials
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.