Risk of severe COVID-19 outcomes after autumn 2022 COVID-19 booster vaccinations: a pooled analysis of national prospective cohort studies involving 7.4 million adults in England, Northern Ireland, Scotland and WalesResearch in context

Bibliographic Details
Title: Risk of severe COVID-19 outcomes after autumn 2022 COVID-19 booster vaccinations: a pooled analysis of national prospective cohort studies involving 7.4 million adults in England, Northern Ireland, Scotland and WalesResearch in context
Authors: Stuart Bedston, Fatima Almaghrabi, Lynsey Patterson, Utkarsh Agrawal, Lana Woolford, Sneha N. Anand, Mark Joy, Anna Crawford, Rosalind Goudie, Rachel Byford, Hoda Abbasizanjani, Deb Smith, Lynn Laidlaw, Ashley Akbari, Christopher Sullivan, Declan T. Bradley, Ronan A. Lyons, Simon de Lusignan, F.D. Richard Hobbs, Chris Robertson, Sir Aziz Sheikh, Ting Shi
Source: The Lancet Regional Health. Europe, Vol 37, Iss , Pp 100816- (2024)
Publisher Information: Elsevier, 2024.
Publication Year: 2024
Collection: LCC:Public aspects of medicine
Subject Terms: COVID-19, Vaccine, Hospital admission, Vaccine breakthrough, Booster dose, Public aspects of medicine, RA1-1270
More Details: Summary: Background: UK COVID-19 vaccination policy has evolved to offering COVID-19 booster doses to individuals at increased risk of severe Illness from COVID-19. Building on our analyses of vaccine effectiveness of first, second and initial booster doses, we aimed to identify individuals at increased risk of severe outcomes (i.e., COVID-19 related hospitalisation or death) post the autumn 2022 booster dose. Methods: We undertook a national population-based cohort analysis across all four UK nations through linked primary care, vaccination, hospitalisation and mortality data. We included individuals who received autumn 2022 booster doses of BNT162b2 (Comirnaty) or mRNA-1273 (Spikevax) during the period September 1, 2022 to December 31, 2022 to investigate the risk of severe COVID-19 outcomes. Cox proportional hazard models were used to estimate adjusted hazard ratios (aHR) and 95% confidence intervals (CIs) for the association between demographic and clinical factors and severe COVID-19 outcomes after the autumn booster dose. Analyses were adjusted for age, sex, body mass index (BMI), deprivation, urban/rural areas and comorbidities. Stratified analyses were conducted by vaccine type. We then conducted a fixed-effect meta-analysis to combine results across the four UK nations. Findings: Between September 1, 2022 and December 31, 2022, 7,451,890 individuals ≥18 years received an autumn booster dose. 3500 had severe COVID-19 outcomes (2.9 events per 1000 person-years). Being male (male vs female, aHR 1.41 (1.32–1.51)), older adults (≥80 years vs 18–49 years; 10.43 (8.06–13.50)), underweight (BMI
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2666-7762
Relation: http://www.sciencedirect.com/science/article/pii/S2666776223002351; https://doaj.org/toc/2666-7762
DOI: 10.1016/j.lanepe.2023.100816
Access URL: https://doaj.org/article/e69ea1c71a754326b2db0e1fbd1485d6
Accession Number: edsdoj.69ea1c71a754326b2db0e1fbd1485d6
Database: Directory of Open Access Journals
More Details
ISSN:26667762
DOI:10.1016/j.lanepe.2023.100816
Published in:The Lancet Regional Health. Europe
Language:English