Doctor recommendations and parents’ HPV vaccination intentions in Kenya: A randomized survey

The causal effect of a doctor’s recommendation for Human Papillomavirus (HPV) vaccination on parents’ decisions in low-resource settings is not well understood. This study investigates how doctors’ endorsement of the HPV vaccine communicated through a public health poster affects parents’ decisions...

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Main Authors: Samantha Horn, Gretchen B. Chapman, Kriti Chouhan
Format: Article
Language:English
Published: Elsevier 2022-02-01
Series:Preventive Medicine Reports
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2211335521003508
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author Samantha Horn
Gretchen B. Chapman
Kriti Chouhan
author_facet Samantha Horn
Gretchen B. Chapman
Kriti Chouhan
author_sort Samantha Horn
collection DOAJ
description The causal effect of a doctor’s recommendation for Human Papillomavirus (HPV) vaccination on parents’ decisions in low-resource settings is not well understood. This study investigates how doctors’ endorsement of the HPV vaccine communicated through a public health poster affects parents’ decisions to vaccinate their daughters in Kenya. In January and February 2021, 600 parents of daughters eligible for the HPV vaccine but not yet vaccinated were recruited and completed a randomized survey. Participants saw a poster from a national campaign about HPV vaccination and either nothing further (Control) or an additional poster containing an HPV vaccine recommendation from a female (FDR) or male doctor (MDR). Primary outcomes are intentions to vaccinate and perceived safety of the HPV vaccine. Both recommendation arms increased the likelihood that participants reported the highest levels of vaccine intentions compared to control (FDR: 33.7% p = 0.01; MDR: 30.5%, p = 0.05, compared to Control (22.4%)) and safety perceptions (FDR: 24.2%. p = 0.09; MDR: 28.0%, p = 0.01, compared to Control (17.1%)) but there was no statistically significant increase in the likelihood to report above moderate vaccine intentions (FDR: 72.6%, p = 0.76; MDR: 72.5%, p = 0.77, compared to Control (71.4%)) or safety perceptions (FDR: 68.9%, p = 0.91; MDR: 75.0%, p = 0.17, compared to Control (68.6%)). We find no differential treatment effect by the recommending doctor’s gender. In conclusion, our results suggest that visual communication of a doctor’s support for the HPV vaccine can strengthen above-moderate intentions and safety perceptions but may not be enough to persuade the vaccine hesitant to vaccinate.
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spelling doaj.art-c01ff406f7db4faea3ba180f37dbe2e52022-12-21T19:44:35ZengElsevierPreventive Medicine Reports2211-33552022-02-0125101659Doctor recommendations and parents’ HPV vaccination intentions in Kenya: A randomized surveySamantha Horn0Gretchen B. Chapman1Kriti Chouhan2Department of Social and Decision Sciences, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, United States; Corresponding author.Department of Social and Decision Sciences, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA 15213, United StatesBusara Center for Behavioral Economics, 5th Floor, Daykio Plaza, Lane, Ngong Ln, Nairobi, KenyaThe causal effect of a doctor’s recommendation for Human Papillomavirus (HPV) vaccination on parents’ decisions in low-resource settings is not well understood. This study investigates how doctors’ endorsement of the HPV vaccine communicated through a public health poster affects parents’ decisions to vaccinate their daughters in Kenya. In January and February 2021, 600 parents of daughters eligible for the HPV vaccine but not yet vaccinated were recruited and completed a randomized survey. Participants saw a poster from a national campaign about HPV vaccination and either nothing further (Control) or an additional poster containing an HPV vaccine recommendation from a female (FDR) or male doctor (MDR). Primary outcomes are intentions to vaccinate and perceived safety of the HPV vaccine. Both recommendation arms increased the likelihood that participants reported the highest levels of vaccine intentions compared to control (FDR: 33.7% p = 0.01; MDR: 30.5%, p = 0.05, compared to Control (22.4%)) and safety perceptions (FDR: 24.2%. p = 0.09; MDR: 28.0%, p = 0.01, compared to Control (17.1%)) but there was no statistically significant increase in the likelihood to report above moderate vaccine intentions (FDR: 72.6%, p = 0.76; MDR: 72.5%, p = 0.77, compared to Control (71.4%)) or safety perceptions (FDR: 68.9%, p = 0.91; MDR: 75.0%, p = 0.17, compared to Control (68.6%)). We find no differential treatment effect by the recommending doctor’s gender. In conclusion, our results suggest that visual communication of a doctor’s support for the HPV vaccine can strengthen above-moderate intentions and safety perceptions but may not be enough to persuade the vaccine hesitant to vaccinate.http://www.sciencedirect.com/science/article/pii/S2211335521003508HPV vaccinesProvider recommendationAdolescent vaccinesHealth communicationKenya
spellingShingle Samantha Horn
Gretchen B. Chapman
Kriti Chouhan
Doctor recommendations and parents’ HPV vaccination intentions in Kenya: A randomized survey
Preventive Medicine Reports
HPV vaccines
Provider recommendation
Adolescent vaccines
Health communication
Kenya
title Doctor recommendations and parents’ HPV vaccination intentions in Kenya: A randomized survey
title_full Doctor recommendations and parents’ HPV vaccination intentions in Kenya: A randomized survey
title_fullStr Doctor recommendations and parents’ HPV vaccination intentions in Kenya: A randomized survey
title_full_unstemmed Doctor recommendations and parents’ HPV vaccination intentions in Kenya: A randomized survey
title_short Doctor recommendations and parents’ HPV vaccination intentions in Kenya: A randomized survey
title_sort doctor recommendations and parents hpv vaccination intentions in kenya a randomized survey
topic HPV vaccines
Provider recommendation
Adolescent vaccines
Health communication
Kenya
url http://www.sciencedirect.com/science/article/pii/S2211335521003508
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