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Article

Non-Pharmacological Preventive Measures Had an Impact on COVID-19 in Healthcare Workers before the Vaccination Effect: A Cohort Study

by 1,2,3,*,†, 1,2,3,†, 1,2,3,4, 2,5,6, 2,5,6, 7, 7, 2,5,6, 1,2,4, 1,2,3,4 and 1,2,3,4
1
Centre for Research in Occupational Health, Department of Medicine and Life Sciences, Universitat Pompeu Fabra, 08003 Barcelona, Spain
2
IMIM-Hospital del Mar Medical Research Institute, 08003 Barcelona, Spain
3
CIBER of Epidemiology and Public Health, 28029 Madrid, Spain
4
Occupational Health Service, Parc de Salut Mar, 08003 Barcelona, Spain
5
Department of Epidemiology and Evaluation, Parc de Salut Mar, 08003 Barcelona, Spain
6
Network for Research on Chronicity, Primary Care and Health Promotion (RICAPPS), 08003 Barcelona, Spain
7
Consorci Mar Parc de Salut de Barcelona, 08003 Barcelona, Spain
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Alan H. S. Chan
Int. J. Environ. Res. Public Health 2022, 19(6), 3628; https://doi.org/10.3390/ijerph19063628
Received: 2 March 2022 / Revised: 13 March 2022 / Accepted: 16 March 2022 / Published: 18 March 2022
Healthcare workers have been and still are at the forefront of COVID-19 patient care. Their infection had direct implications and caused important challenges for healthcare performance. The aim of this study is to assess the impact of non-pharmacological preventive measures against COVID-19 among healthcare workers. This study is based on a dynamic cohort of healthcare workers (n = 5543) who had been hired by a Spanish hospital for at least one week during 2020. Negative binomial regression models were used to estimate the incidence rate and the rate ratio (RR) between the two waves (defined from 15 March to 21 June and from 22 June to 31 December), considering natural immunity during the first wave and contextual variables. All models were stratified by socio-occupational variables. The average COVID-19 incidence rate per 1000 worker-days showed a significant reduction between the two waves, dropping from 0.82 (CI95%: 0.73–0.91) to 0.39 (0.35–0.44). The adjusted RR was 0.54 (0.48–0.87) when natural immunity was acquired during the first wave, and contextual variables were considered. The significant reduction of the COVID-19 incidence rate could be explained mainly by improvement in the non-pharmacological preventive interventions. It is needed to identify which measures were more effective. Young workers and those with a replacement contract were identified as vulnerable groups that need greater preventive efforts. Future preparedness plans would benefit from these results. View Full-Text
Keywords: COVID-19; healthcare worker; incidence; rate ratio; non-pharmaceutical preventive measures COVID-19; healthcare worker; incidence; rate ratio; non-pharmaceutical preventive measures
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MDPI and ACS Style

Utzet, M.; Benavides, F.G.; Villar, R.; Burón, A.; Sala, M.; López, L.-E.; Gomar, P.; Castells, X.; Diaz, P.; Ramada, J.M.; Serra, C. Non-Pharmacological Preventive Measures Had an Impact on COVID-19 in Healthcare Workers before the Vaccination Effect: A Cohort Study. Int. J. Environ. Res. Public Health 2022, 19, 3628. https://doi.org/10.3390/ijerph19063628

AMA Style

Utzet M, Benavides FG, Villar R, Burón A, Sala M, López L-E, Gomar P, Castells X, Diaz P, Ramada JM, Serra C. Non-Pharmacological Preventive Measures Had an Impact on COVID-19 in Healthcare Workers before the Vaccination Effect: A Cohort Study. International Journal of Environmental Research and Public Health. 2022; 19(6):3628. https://doi.org/10.3390/ijerph19063628

Chicago/Turabian Style

Utzet, Mireia, Fernando G. Benavides, Rocío Villar, Andrea Burón, Maria Sala, Luis-Eugenio López, Pau Gomar, Xavier Castells, Pilar Diaz, José María Ramada, and Consol Serra. 2022. "Non-Pharmacological Preventive Measures Had an Impact on COVID-19 in Healthcare Workers before the Vaccination Effect: A Cohort Study" International Journal of Environmental Research and Public Health 19, no. 6: 3628. https://doi.org/10.3390/ijerph19063628

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