Healthcare workers safety: a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against SARS-CoV-2 infection

Abstract Healthcare Workers (HCWs) are at ongoing risk of SARS-CoV-2 infection, potentially contributing to its transmission. This study assessed full vaccination and vaccination timeliness impact on SARS-CoV-2 infections among HCWs in Italy’s Marche Region, using Healthcare Utilization Databases. W...

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Main Authors: Edlira Skrami, Andrea Faragalli, Marica Iommi, Marco Morbidoni, Cristina Mancini, Antonella Guidi, Annalisa Cardone, Marco Pompili, Pietro Serafini, Remo Appignanesi, Luigi Ferrante, Flavia Carle
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-024-84100-0
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author Edlira Skrami
Andrea Faragalli
Marica Iommi
Marco Morbidoni
Cristina Mancini
Antonella Guidi
Annalisa Cardone
Marco Pompili
Pietro Serafini
Remo Appignanesi
Luigi Ferrante
Flavia Carle
author_facet Edlira Skrami
Andrea Faragalli
Marica Iommi
Marco Morbidoni
Cristina Mancini
Antonella Guidi
Annalisa Cardone
Marco Pompili
Pietro Serafini
Remo Appignanesi
Luigi Ferrante
Flavia Carle
author_sort Edlira Skrami
collection DOAJ
description Abstract Healthcare Workers (HCWs) are at ongoing risk of SARS-CoV-2 infection, potentially contributing to its transmission. This study assessed full vaccination and vaccination timeliness impact on SARS-CoV-2 infections among HCWs in Italy’s Marche Region, using Healthcare Utilization Databases. We evaluated vaccination coverage and its associated factors. The cohort comprised 21,118 HCWs aged 18–70 from the region’s five Local Health Authorities (LHA), enrolled between February 2020 - May 2021. Factors associated with full vaccination were assessed using multiple logistic regression. The impact of vaccination status, time to vaccination, occupational role, age, gender, and health status on infection risk was analysed with a multiple Cox regression model, adjusting for vaccination coverage velocity, swabbing probability, and monthly intensive care unit admissions rate in each LHA. Of the cohort, 81.2% were fully vaccinated. Factors associated with full vaccination included age, role, LHA, prior infection, and health status. Vaccination reduced infection risk by 77% (95% CI: 70–82). Infection risk was higher among healthcare assistants, nurses/physiotherapists/technicians compared to physicians, among male HCWs, and it decreased as vaccination timeliness increased. Vaccination timeliness is crucial for reducing SARS-CoV-2 infection risk among HCWs, regardless of their characteristics. This underscores the importance of efficiently organizing vaccination administration across different territories and for all HCW categories.
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spelling doaj-art-c7b4c5b555424963a5197bd1cc496fcb2025-01-05T12:14:41ZengNature PortfolioScientific Reports2045-23222025-01-0115111010.1038/s41598-024-84100-0Healthcare workers safety: a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against SARS-CoV-2 infectionEdlira Skrami0Andrea Faragalli1Marica Iommi2Marco Morbidoni3Cristina Mancini4Antonella Guidi5Annalisa Cardone6Marco Pompili7Pietro Serafini8Remo Appignanesi9Luigi Ferrante10Flavia Carle11Center of Epidemiology, Biostatistics and Medical Information Technology, Department of Biomedical Sciences and Public Health, Università Politecnica delle MarcheCenter of Epidemiology, Biostatistics and Medical Information Technology, Department of Biomedical Sciences and Public Health, Università Politecnica delle MarcheCenter of Epidemiology, Biostatistics and Medical Information Technology, Department of Biomedical Sciences and Public Health, Università Politecnica delle MarcheEnvironment, Health and Epidemiology Department, Hygiene and Public Health Service, Local Health Authority AnconaEnvironment, Health and Epidemiology Department, Hygiene and Public Health Service, Local Health Authority AnconaEnvironment, Health and Epidemiology Department, Hygiene and Public Health Service, Local Health Authority AnconaEnvironment, Health and Epidemiology Department, Hygiene and Public Health Service, Local Health Authority AnconaRegional Health Agency of MarcheControl Management Department, Local Health Authority AnconaRisk Management and Clinical Governance Unit, Local Health Authority Ascoli PicenoCenter of Epidemiology, Biostatistics and Medical Information Technology, Department of Biomedical Sciences and Public Health, Università Politecnica delle MarcheCenter of Epidemiology, Biostatistics and Medical Information Technology, Department of Biomedical Sciences and Public Health, Università Politecnica delle MarcheAbstract Healthcare Workers (HCWs) are at ongoing risk of SARS-CoV-2 infection, potentially contributing to its transmission. This study assessed full vaccination and vaccination timeliness impact on SARS-CoV-2 infections among HCWs in Italy’s Marche Region, using Healthcare Utilization Databases. We evaluated vaccination coverage and its associated factors. The cohort comprised 21,118 HCWs aged 18–70 from the region’s five Local Health Authorities (LHA), enrolled between February 2020 - May 2021. Factors associated with full vaccination were assessed using multiple logistic regression. The impact of vaccination status, time to vaccination, occupational role, age, gender, and health status on infection risk was analysed with a multiple Cox regression model, adjusting for vaccination coverage velocity, swabbing probability, and monthly intensive care unit admissions rate in each LHA. Of the cohort, 81.2% were fully vaccinated. Factors associated with full vaccination included age, role, LHA, prior infection, and health status. Vaccination reduced infection risk by 77% (95% CI: 70–82). Infection risk was higher among healthcare assistants, nurses/physiotherapists/technicians compared to physicians, among male HCWs, and it decreased as vaccination timeliness increased. Vaccination timeliness is crucial for reducing SARS-CoV-2 infection risk among HCWs, regardless of their characteristics. This underscores the importance of efficiently organizing vaccination administration across different territories and for all HCW categories.https://doi.org/10.1038/s41598-024-84100-0COVID-19SARS-CoV-2Vaccine impactVaccine timelinessHealthcare workersHealthcare Utilisation databases
spellingShingle Edlira Skrami
Andrea Faragalli
Marica Iommi
Marco Morbidoni
Cristina Mancini
Antonella Guidi
Annalisa Cardone
Marco Pompili
Pietro Serafini
Remo Appignanesi
Luigi Ferrante
Flavia Carle
Healthcare workers safety: a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against SARS-CoV-2 infection
Scientific Reports
COVID-19
SARS-CoV-2
Vaccine impact
Vaccine timeliness
Healthcare workers
Healthcare Utilisation databases
title Healthcare workers safety: a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against SARS-CoV-2 infection
title_full Healthcare workers safety: a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against SARS-CoV-2 infection
title_fullStr Healthcare workers safety: a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against SARS-CoV-2 infection
title_full_unstemmed Healthcare workers safety: a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against SARS-CoV-2 infection
title_short Healthcare workers safety: a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against SARS-CoV-2 infection
title_sort healthcare workers safety a cohort study using healthcare utilisation databases on vaccination and vaccine timeliness impact against sars cov 2 infection
topic COVID-19
SARS-CoV-2
Vaccine impact
Vaccine timeliness
Healthcare workers
Healthcare Utilisation databases
url https://doi.org/10.1038/s41598-024-84100-0
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