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ArticleIrish journal of medical science2026

Epidemiology and outcomes of adult (non-maternity) community-onset sepsis in Ireland: a secondary analysis of acute hospital administrative data 2020-2024.

Nandakumar Ravichandran, Diarmuid Quinlan, Patricia Fitzpatrick, Ellen Hayes, Mick Molloy, Etimbuk Umana, Tomas Breslin, Aoife Cotter, Walter Cullen

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Article in Irish journal of medical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

9 authors.

Nandakumar RavichandranSchool of Medicine, University College Dublin, Dublin, Ireland. nandakumar.ravichandran@ucd.ie.ORCID http://orcid.org/0009-0001-1199-6793
Diarmuid QuinlanIrish College of GPs, Dublin, Ireland.
Patricia FitzpatrickSchool of Public Health, Physiotherapy and Sports Science, University College Dublin, Dublin, Ireland.
Ellen HayesIrish College of GPs, Dublin, Ireland.
Mick MolloySchool of Medicine, University College Dublin, Dublin, Ireland.
Etimbuk UmanaSchool of Medicine, University College Dublin, Dublin, Ireland.
Tomas BreslinSchool of Medicine, University College Dublin, Dublin, Ireland.
Aoife CotterSchool of Medicine, University College Dublin, Dublin, Ireland.
Walter CullenSchool of Medicine, University College Dublin, Dublin, Ireland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCommunity-onset sepsis accounts for most sepsis episodes, yet national-level data describing its epidemiology and outcomes remain limited in Ireland. Improved characterisation is needed to support prevention, early recognition, and service planning.

objectivesTo examine the epidemiology, infection sources, comorbidity burden, and outcomes of adult (non-maternity) community-onset sepsis in Irish hospitals.

methodsWe conducted a secondary analysis of Hospital In-Patient Enquiry data from all acute public hospitals in Ireland from January 2020 to December 2024. Sepsis admissions were identified using ICD-10-AM diagnostic codes. Demographic characteristics, comorbidity burden, infection source, critical care utilisation, and in-hospital mortality were analysed. Multivariable logistic regression was used to identify independent predictors of critical care admission and mortality.

resultsAmong 68,644 sepsis episodes, 49,268 (71.7%) were community-onset. Of these, 92.6% (n = 45,641) were adult (non-maternity). In-hospital mortality among community-onset was 19.2%. Mortality increased significantly with age, with episodes of individuals aged ≥ 95 years having the highest odds of death (adjOR 9.17, 95% CI 7.31-11.52) compared to those aged 25-44 years. Increasing multimorbidity was independently associated with mortality; three or more comorbidities were associated with over threefold higher odds of death (adjOR 3.24, 95% CI 2.98-3.52). Respiratory infections (adjOR 2.05) were associated with increased mortality, while urinary sources were associated with lower mortality (adjOR 0.50).

conclusionsCommunity-acquired sepsis represents 72% of sepsis episodes in Ireland, predominantly affects older adults with multimorbidity. Prioritising prevention, early recognition, and timely management in the community including vaccination and prompt antibiotic treatment is essential to lowering morbidity and mortality.

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Community-onset sepsisEpidemiologyMultimorbidityNationalPublic hospitals

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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.