ArticlePreventive medicine reports2023
COVID-19 vaccination decreased COVID-19 hospital length of stay, in-hospital death, and increased home discharge.
Article in Preventive medicine reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
16 citing papers in PubMed.
- Understanding COVID-19 Vaccine Hesitancy in Black, East Asian, and Eastern European Diasporic Communities in Toronto: A Scoping Review.International journal of social determinants of health and health services · 2026Article
- In Vitro Validation of Size-Dependent Antiviral Activity ofMarine drugs · 2026Article
- Risk of mortality among older adults hospitalized for COVID-19 with and without vaccination in Mexico.Revista medica del Instituto Mexicano del Seguro Social · 2026Observational
- Five Years of COVID-19 in Tocantins, Brazil: Epidemiology, Vaccination Impact, and SARS-CoV-2 Genomic Dynamics (2020-2025).Viruses · 2025Article
- Risk factors for severe disease in children hospitalized with SARS-CoV-2 infection in China: a retrospective cohort study.BMC infectious diseases · 2025Article
- Review
- Characteristics and predictors of severe outcomes of COVID-19 cases presenting to the emergency department of a major Australian referral hospital: A record linkage study.Emergency medicine Australasia : EMA · 2025Article
- Impact of vaccination against SARS-CoV-2 on mortality risk, ICU admission rate, and hospitalization length in hospitalized COVID-19 patients: a cross-sectional study.BMC infectious diseases · 2025Article
- Area-based Deprivation Indices and Healthcare-Associated Infections: A Narrative Review of Evidence.Current infectious disease reports · 2025Review
- The Impact of Vaccination on COVID-19 Outcomes in Vietnam.Diagnostics (Basel, Switzerland) · 2024Article
- Public Health and Economic Impact of Periodic COVID-19 Vaccination with BNT162b2 for Old Adults and High-Risk Patients in an Illustrative Prefecture of Japan: A Budget Impact Analysis.Infectious diseases and therapy · 2024Article
- The effectiveness of COVID-19 vaccination in preventing hospitalisation and mortality: A nationwide cross-sectional study in Iran.Journal of global health · 2024Article
- Vaccines reduced hospital length of stay and fraction of inspired oxygen of COVID-19 patients: A retrospective cohort study.Preventive medicine reports · 2024Article
- Article
- Cost-effectiveness analysis of COVID-19 booster doses and oral antivirals: Case studies in the Indo-Pacific.PloS one · 2024Article
- Vaccination Status and In-hospital Mortality Among Adults With COVID-19 in Jakarta, Indonesia: A Retrospective Hospital-based Cohort Study.Journal of preventive medicine and public health = Yebang Uihakhoe chi · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
COVID-19 vaccination impact on hospital outcome metrics among patients hospitalized with COVID-19 is not well known. We evaluated if covid-19 vaccination was associated with better hospital outcomes such as in-hospital mortality, overall length of stay, and home discharge. This retrospective study analyzed data from the electronic health records of 29,732 patients admitted with COVID-19 with or without vaccination (21,525 unvaccinated and 8207 vaccinated) from January to December 2021. The association of COVID-19 vaccination status with overall length of hospitalization, in-hospital mortality rate, home discharge after hospitalization was investigated using a multivariate logistic regression and a generalized linear model. The mean age of all groups was 58.16 ± 17.39 years. The unvaccinated group was younger (54.95 ± 16.75) and had less comorbidities compared to the vaccinated group. Patients that had received COVID-19 vaccination exhibited decreased in-hospital mortality (OR 0.666, 95 % CI 0.580-0.764), decreased length of stay (-2.13 days, CI 2.73-1.55 days), and increased rate of home discharge (OR 1.168, CI 1.037-1.315). Older age and cerebrovascular accident diagnosis at admission demonstrated a negative effect on hospital outcomes with decreased home discharge (OR 0.950 per 1 year, CI 0.946-0.953 and OR 0.415, CI 0.202-0.854) and increased inhospital mortality (OR 1.04 per 1 year, CI 1.036-1.045 and OR 3.005, CI 1.961-4.604). This study shows the additional positive impact of COVID-19 vaccination has not just on in-hospital mortality but also in reducing overall length of stay and improved hospital outcome metrics including increasing likelihood of home discharge after hospitalization.
Indexed as
Identifiers
What OpenQuestion holds
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.