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Inicio Journal of Healthcare Quality Research Efectividad de la vacuna antigripal en la prevención de la gripe grave
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Vol. 37. Issue 4.
Pages 201-207 (July - August 2022)
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Vol. 37. Issue 4.
Pages 201-207 (July - August 2022)
Original
Efectividad de la vacuna antigripal en la prevención de la gripe grave
Effectiveness of influenza vaccine in preventing severe influenza
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30
F.M. Escandell Ricoa,
Corresponding author
francisco.escandell@ua.es

Autor para correspondencia.
, L. Pérez Fernándezb, L. Maciá Solera, J. Requena Puchec
a Departamento de Enfermería, Universidad de Alicante, Alicante, España
b Departamento de Salud de Orihuela, Centro de Salud Almoradí, Orihuela, Alicante, España
c Departamento de Salud de Elda, Hospital General Universitario de Elda, Elda, Alicante, España
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Resumen
Introducción

La gripe es una de las enfermedades de mayor impacto epidemiológico y de máxima relevancia en la gestión de los servicios sanitarios. La vacuna de la gripe puede tener una gran variabilidad cada temporada, por lo que nuestro objetivo fue conocer la efectividad de la vacuna de la gripe de la temporada 2017/2018 para la prevención de casos graves de gripe en un hospital general de agudos de 385 camas.

Material y método

Estudio de casos y controles. Se incluyeron todos los pacientes hospitalizados con gripe confirmada por el laboratorio durante la temporada 2017/2018. Los que cumplieron criterios de caso grave de gripe se consideraron caso. Los que no cumplían criterios de gravedad se consideraron controles. Se calculó los factores asociados con el desarrollo de la gripe grave.

Resultados

La efectividad ajustada por grupo de edad y comorbilidad fue del 60,7% (20,5-80,5). Los grupos de vacunados/as y no vacunados/as fueron diferentes en cuanto a edad (p<0,0381). Se concentraron la mayor proporción de casos en los mayores de 65 años (45,5%). El estado de vacunación frente a la gripe grave resultó ser un factor protector independiente (OR=0,746; 0,694-0,831).

Conclusiones

La efectividad de la vacunación antigripal proporcionó una mayor protección contra la infección, y redujo la gravedad de la gripe en los pacientes hospitalizados. Estos hallazgos deberían tenerse en cuenta para mejorar las estrategias de vacunación y alcanzar mejores coberturas vacunales en la población de riesgo.

Palabras clave:
Influenza
Vacunación repetida
Efectividad de la vacuna
Hospitalización
Abstract
Introduction

Influenza is one of the diseases with the greatest epidemiological impact and the greatest relevance in the management of health services. The flu vaccine can have great variability each season, so our objective was to know the effectiveness of the flu vaccine for the 2017/2018 season for the prevention of severe cases of flu in a general acute hospital in 385 beds.

Material and method

Case control study. All hospitalized patients with laboratory confirmed influenza during the 2017/2018 season were included. Those who met the criteria for a severe case of influenza were considered cases. Those that did not meet the severity criteria were considered controls. The factors associated with the development of severe influenza were calculated.

Results

The effectiveness adjusted by age group and comorbidity was 60.7% (20.5-80.5). The vaccinated and unvaccinated groups were different in terms of age (P<.0381). The highest proportion of cases were concentrated in those over 65 years of age (45.5%). Vaccination status against severe influenza was found to be an independent protective factor (OR=.746; .694-.831).

Conclusions

The effectiveness of influenza vaccination provided greater protection against infection and reduced the severity of influenza in hospitalized patients. These findings should be considered to improve vaccination strategies and achieve better vaccination coverage in the population at risk.

Keywords:
Influenza
Repeated vaccination
Vaccine effectiveness
Hospitalization

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