Attributes influencing parental decision-making to receive the Tdap vaccine to reduce the risk of pertussis transmission to their newborn – outcome of a cross-sectional conjoint experiment in Spain and Italy

Pertussis vaccination of parents and household contacts (‘cocooning’) to protect newborn infants is an established strategy in many countries, although uptake may be low. Many aspects may influence such decision-making. We conducted a cross-sectional survey (NCT01890447) of households and other clos...

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Main Authors: Edouard Ledent, Giovanni Gabutti, Esther W. de Bekker-Grob, Juan Luis Alcázar Zambrano, Magda Campins Martí, María Teresa Del Hierro Gurruchaga, María José Fernández Cruz, Giuseppe Ferrera, Francesca Fortunato, Pierfederico Torchio, Giorgio Zoppi, Christian Agboton, Walid Kandeil, Federico Marchetti
Format: Article
Language:English
Published: Taylor & Francis Group 2019-05-01
Series:Human Vaccines & Immunotherapeutics
Subjects:
Online Access:http://dx.doi.org/10.1080/21645515.2019.1571890
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author Edouard Ledent
Giovanni Gabutti
Esther W. de Bekker-Grob
Juan Luis Alcázar Zambrano
Magda Campins Martí
María Teresa Del Hierro Gurruchaga
María José Fernández Cruz
Giuseppe Ferrera
Francesca Fortunato
Pierfederico Torchio
Giorgio Zoppi
Christian Agboton
Walid Kandeil
Federico Marchetti
author_facet Edouard Ledent
Giovanni Gabutti
Esther W. de Bekker-Grob
Juan Luis Alcázar Zambrano
Magda Campins Martí
María Teresa Del Hierro Gurruchaga
María José Fernández Cruz
Giuseppe Ferrera
Francesca Fortunato
Pierfederico Torchio
Giorgio Zoppi
Christian Agboton
Walid Kandeil
Federico Marchetti
author_sort Edouard Ledent
collection DOAJ
description Pertussis vaccination of parents and household contacts (‘cocooning’) to protect newborn infants is an established strategy in many countries, although uptake may be low. Many aspects may influence such decision-making. We conducted a cross-sectional survey (NCT01890447) of households and other close contacts of newborns aged ≤6 months (or of expectant mothers in their last trimester) in Spain and Italy, using an adaptive discrete-choice experiment questionnaire. Aims were to assess the relative importance of attributes influencing vaccine adoption, and to estimate variation in vaccine adoption rates and the impact of cost on vaccination rates. Six hundred and fifteen participants (Spain, n = 313; Italy, n = 302) completed the survey. Of 144 available questionnaire scenarios, the most frequently selected (14% of respondents in both countries) were infant protection by household vaccination at vaccination center, recommendation by family physician and health authorities, with information available on leaflets and websites. The attribute with highest median relative importance was ‘reduction in source of infection’ in Spain (23.1%) and ‘vaccination location’ in Italy (18.8%). Differences between other attributes were low in both countries, with media attributes showing low importance. Over 80% of respondents indicated a definite or probable response to vaccine adoption (at no-cost) with estimated probability of adoption of 89–98%; applying vaccine costs (25€ per person) would reduce the probability of uptake by 7–20% in definite/probable respondents. Awareness of these determinants is helpful in informing Health Authorities and healthcare practitioners implementing a cocooning strategy for those populations where maternal immunization is not a preferred option.
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spelling doaj.art-5e3837e88aea484e8cad8d11d7bb9b6b2023-09-22T08:38:25ZengTaylor & Francis GroupHuman Vaccines & Immunotherapeutics2164-55152164-554X2019-05-011551080109110.1080/21645515.2019.15718901571890Attributes influencing parental decision-making to receive the Tdap vaccine to reduce the risk of pertussis transmission to their newborn – outcome of a cross-sectional conjoint experiment in Spain and ItalyEdouard Ledent0Giovanni Gabutti1Esther W. de Bekker-Grob2Juan Luis Alcázar Zambrano3Magda Campins Martí4María Teresa Del Hierro Gurruchaga5María José Fernández Cruz6Giuseppe Ferrera7Francesca Fortunato8Pierfederico Torchio9Giorgio Zoppi10Christian Agboton11Walid Kandeil12Federico Marchetti13GSKUniversity of FerraraErasmus School of Health Policy & Management, Erasmus University RotterdamClínica Universitad de NavarraHospital Universitario Vall d’HebronUniversidad del País VascoHospital Universitario de GetafeASP Ragusa, Centro ServiziUniversity of FoggiaServizio Igiene e Sanità PubblicaStruttura Complessa Igiene e Sanità PubblicaGSKGSKGSKPertussis vaccination of parents and household contacts (‘cocooning’) to protect newborn infants is an established strategy in many countries, although uptake may be low. Many aspects may influence such decision-making. We conducted a cross-sectional survey (NCT01890447) of households and other close contacts of newborns aged ≤6 months (or of expectant mothers in their last trimester) in Spain and Italy, using an adaptive discrete-choice experiment questionnaire. Aims were to assess the relative importance of attributes influencing vaccine adoption, and to estimate variation in vaccine adoption rates and the impact of cost on vaccination rates. Six hundred and fifteen participants (Spain, n = 313; Italy, n = 302) completed the survey. Of 144 available questionnaire scenarios, the most frequently selected (14% of respondents in both countries) were infant protection by household vaccination at vaccination center, recommendation by family physician and health authorities, with information available on leaflets and websites. The attribute with highest median relative importance was ‘reduction in source of infection’ in Spain (23.1%) and ‘vaccination location’ in Italy (18.8%). Differences between other attributes were low in both countries, with media attributes showing low importance. Over 80% of respondents indicated a definite or probable response to vaccine adoption (at no-cost) with estimated probability of adoption of 89–98%; applying vaccine costs (25€ per person) would reduce the probability of uptake by 7–20% in definite/probable respondents. Awareness of these determinants is helpful in informing Health Authorities and healthcare practitioners implementing a cocooning strategy for those populations where maternal immunization is not a preferred option.http://dx.doi.org/10.1080/21645515.2019.1571890pertussisvaccinationcocooningspainitalyadaptive choice-based conjoint questionnaireadaptive discrete-choice experimentpreferencessawtooth softwaresurvey
spellingShingle Edouard Ledent
Giovanni Gabutti
Esther W. de Bekker-Grob
Juan Luis Alcázar Zambrano
Magda Campins Martí
María Teresa Del Hierro Gurruchaga
María José Fernández Cruz
Giuseppe Ferrera
Francesca Fortunato
Pierfederico Torchio
Giorgio Zoppi
Christian Agboton
Walid Kandeil
Federico Marchetti
Attributes influencing parental decision-making to receive the Tdap vaccine to reduce the risk of pertussis transmission to their newborn – outcome of a cross-sectional conjoint experiment in Spain and Italy
Human Vaccines & Immunotherapeutics
pertussis
vaccination
cocooning
spain
italy
adaptive choice-based conjoint questionnaire
adaptive discrete-choice experiment
preferences
sawtooth software
survey
title Attributes influencing parental decision-making to receive the Tdap vaccine to reduce the risk of pertussis transmission to their newborn – outcome of a cross-sectional conjoint experiment in Spain and Italy
title_full Attributes influencing parental decision-making to receive the Tdap vaccine to reduce the risk of pertussis transmission to their newborn – outcome of a cross-sectional conjoint experiment in Spain and Italy
title_fullStr Attributes influencing parental decision-making to receive the Tdap vaccine to reduce the risk of pertussis transmission to their newborn – outcome of a cross-sectional conjoint experiment in Spain and Italy
title_full_unstemmed Attributes influencing parental decision-making to receive the Tdap vaccine to reduce the risk of pertussis transmission to their newborn – outcome of a cross-sectional conjoint experiment in Spain and Italy
title_short Attributes influencing parental decision-making to receive the Tdap vaccine to reduce the risk of pertussis transmission to their newborn – outcome of a cross-sectional conjoint experiment in Spain and Italy
title_sort attributes influencing parental decision making to receive the tdap vaccine to reduce the risk of pertussis transmission to their newborn outcome of a cross sectional conjoint experiment in spain and italy
topic pertussis
vaccination
cocooning
spain
italy
adaptive choice-based conjoint questionnaire
adaptive discrete-choice experiment
preferences
sawtooth software
survey
url http://dx.doi.org/10.1080/21645515.2019.1571890
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