Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10362/89752 |
Resumo: | BackgroundTo increase the acceptability of influenza vaccine, it is important to quantify the overall benefits of the vaccination programme.AimTo assess the impact of influenza vaccination in Portugal, Spain and the Netherlands, we estimated the number of medically attended influenza-confirmed cases (MAICC) in primary care averted in the seasons 2015/16 to 2017/18 among those ≥ 65 years.MethodsWe used an ecological approach to estimate vaccination impact. We compared the number of observed MAICC (n) to the estimated number that would have occurred without the vaccination programme (N). To estimate N, we used: (i) MAICC estimated from influenza surveillance systems, (ii) vaccine coverage, (iii) pooled (sub)type-specific influenza vaccine effectiveness estimates for seasons 2015/16 to 2017/18, weighted by the proportion of virus circulation in each season and country. We estimated the number of MAICC averted (NAE) and the prevented fraction (PF) by the vaccination programme.ResultsThe annual average of NAE in the population ≥ 65 years was 33, 58 and 204 MAICC per 100,000 in Portugal, Spain and the Netherlands, respectively. On average, influenza vaccination prevented 10.7%, 10.9% and 14.2% of potential influenza MAICC each season in these countries. The lowest PF was in 2016/17 (4.9-6.1%) with an NAE ranging from 24 to 69 per 100,000.ConclusionsOur results suggest that influenza vaccination programmes reduced a substantial number of MAICC. Together with studies on hospitalisations and deaths averted by influenza vaccination programmes, this will contribute to the evaluation of the impact of vaccination strategies and strengthen public health communication. |
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Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands2015/16 to 2017/18 influenza seasonsaverted casesimpactinfluenzainfluenza vaccineEpidemiologyPublic Health, Environmental and Occupational HealthVirologySDG 3 - Good Health and Well-beingBackgroundTo increase the acceptability of influenza vaccine, it is important to quantify the overall benefits of the vaccination programme.AimTo assess the impact of influenza vaccination in Portugal, Spain and the Netherlands, we estimated the number of medically attended influenza-confirmed cases (MAICC) in primary care averted in the seasons 2015/16 to 2017/18 among those ≥ 65 years.MethodsWe used an ecological approach to estimate vaccination impact. We compared the number of observed MAICC (n) to the estimated number that would have occurred without the vaccination programme (N). To estimate N, we used: (i) MAICC estimated from influenza surveillance systems, (ii) vaccine coverage, (iii) pooled (sub)type-specific influenza vaccine effectiveness estimates for seasons 2015/16 to 2017/18, weighted by the proportion of virus circulation in each season and country. We estimated the number of MAICC averted (NAE) and the prevented fraction (PF) by the vaccination programme.ResultsThe annual average of NAE in the population ≥ 65 years was 33, 58 and 204 MAICC per 100,000 in Portugal, Spain and the Netherlands, respectively. On average, influenza vaccination prevented 10.7%, 10.9% and 14.2% of potential influenza MAICC each season in these countries. The lowest PF was in 2016/17 (4.9-6.1%) with an NAE ranging from 24 to 69 per 100,000.ConclusionsOur results suggest that influenza vaccination programmes reduced a substantial number of MAICC. Together with studies on hospitalisations and deaths averted by influenza vaccination programmes, this will contribute to the evaluation of the impact of vaccination strategies and strengthen public health communication.Centro de Investigação em Saúde Pública (CISP/PHRC)Escola Nacional de Saúde Pública (ENSP)RUNMachado, AusendaMazagatos, ClaraDijkstra, FrederikaKislaya, IrinaGherasim, AlinMcDonald, Scott A.Kissling, EstherValenciano, MartaMeijer, AdamHooiveld, MariëtteNunes, BaltazarLarrauri, Amparo2019-12-11T23:21:51Z2019-11-012019-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/89752eng1560-7917PURE: 15784340http://www.scopus.com/inward/record.url?scp=85074909302&partnerID=8YFLogxKhttps://doi.org/10.2807/1560-7917.ES.2019.24.45.1900268info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-03-11T04:39:58Zoai:run.unl.pt:10362/89752Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:37:04.011602Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands 2015/16 to 2017/18 influenza seasons |
title |
Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands |
spellingShingle |
Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands Machado, Ausenda averted cases impact influenza influenza vaccine Epidemiology Public Health, Environmental and Occupational Health Virology SDG 3 - Good Health and Well-being |
title_short |
Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands |
title_full |
Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands |
title_fullStr |
Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands |
title_full_unstemmed |
Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands |
title_sort |
Impact of influenza vaccination programmes among the elderly population on primary care, Portugal, Spain and the Netherlands |
author |
Machado, Ausenda |
author_facet |
Machado, Ausenda Mazagatos, Clara Dijkstra, Frederika Kislaya, Irina Gherasim, Alin McDonald, Scott A. Kissling, Esther Valenciano, Marta Meijer, Adam Hooiveld, Mariëtte Nunes, Baltazar Larrauri, Amparo |
author_role |
author |
author2 |
Mazagatos, Clara Dijkstra, Frederika Kislaya, Irina Gherasim, Alin McDonald, Scott A. Kissling, Esther Valenciano, Marta Meijer, Adam Hooiveld, Mariëtte Nunes, Baltazar Larrauri, Amparo |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Centro de Investigação em Saúde Pública (CISP/PHRC) Escola Nacional de Saúde Pública (ENSP) RUN |
dc.contributor.author.fl_str_mv |
Machado, Ausenda Mazagatos, Clara Dijkstra, Frederika Kislaya, Irina Gherasim, Alin McDonald, Scott A. Kissling, Esther Valenciano, Marta Meijer, Adam Hooiveld, Mariëtte Nunes, Baltazar Larrauri, Amparo |
dc.subject.por.fl_str_mv |
averted cases impact influenza influenza vaccine Epidemiology Public Health, Environmental and Occupational Health Virology SDG 3 - Good Health and Well-being |
topic |
averted cases impact influenza influenza vaccine Epidemiology Public Health, Environmental and Occupational Health Virology SDG 3 - Good Health and Well-being |
description |
BackgroundTo increase the acceptability of influenza vaccine, it is important to quantify the overall benefits of the vaccination programme.AimTo assess the impact of influenza vaccination in Portugal, Spain and the Netherlands, we estimated the number of medically attended influenza-confirmed cases (MAICC) in primary care averted in the seasons 2015/16 to 2017/18 among those ≥ 65 years.MethodsWe used an ecological approach to estimate vaccination impact. We compared the number of observed MAICC (n) to the estimated number that would have occurred without the vaccination programme (N). To estimate N, we used: (i) MAICC estimated from influenza surveillance systems, (ii) vaccine coverage, (iii) pooled (sub)type-specific influenza vaccine effectiveness estimates for seasons 2015/16 to 2017/18, weighted by the proportion of virus circulation in each season and country. We estimated the number of MAICC averted (NAE) and the prevented fraction (PF) by the vaccination programme.ResultsThe annual average of NAE in the population ≥ 65 years was 33, 58 and 204 MAICC per 100,000 in Portugal, Spain and the Netherlands, respectively. On average, influenza vaccination prevented 10.7%, 10.9% and 14.2% of potential influenza MAICC each season in these countries. The lowest PF was in 2016/17 (4.9-6.1%) with an NAE ranging from 24 to 69 per 100,000.ConclusionsOur results suggest that influenza vaccination programmes reduced a substantial number of MAICC. Together with studies on hospitalisations and deaths averted by influenza vaccination programmes, this will contribute to the evaluation of the impact of vaccination strategies and strengthen public health communication. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-12-11T23:21:51Z 2019-11-01 2019-11-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10362/89752 |
url |
http://hdl.handle.net/10362/89752 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1560-7917 PURE: 15784340 http://www.scopus.com/inward/record.url?scp=85074909302&partnerID=8YFLogxK https://doi.org/10.2807/1560-7917.ES.2019.24.45.1900268 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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