Kelly Donahue1, Kristin Hendrix2, Lynne Sturm3, Gregory Zimet4. 1. Department of Pediatrics, Sections of Adolescent Medicine, Indiana University School of Medicine, Indianapolis, Ind. Electronic address: kldonahu@iu.edu. 2. Department of Pediatrics, Children's Health Services Research, Indiana University School of Medicine, Indianapolis, Ind. 3. Department of Pediatrics, Child Development, Indiana University School of Medicine, Indianapolis, Ind. 4. Department of Pediatrics, Sections of Adolescent Medicine, Indiana University School of Medicine, Indianapolis, Ind.
Abstract
OBJECTIVE: To understand the effect of a health messaging intervention focused on provider communication about vaccination on mothers' willingness to vaccinate children against human papillomavirus (HPV) and seasonal influenza. METHODS: A total of 2476 mothers of 9- to 13-year-olds in the United States completed a Web-based survey in August 2014. Mothers were randomized to 1 of 2 groups targeting HPV or influenza vaccine. Mothers whose child had not received the target vaccine (ie, zero doses of HPV vaccine/no prior-year administration of influenza vaccine) were randomized to the intervention. The study used a 3 × 2 between-subjects design; illustrated vignettes depicted 1 of 3 levels of provider recommendation strength (brief mention of vaccination, strong recommendation of vaccination, or personal disclosure of vaccination of own children), and presence or absence of information comparing safety of vaccination to the safety of a common daily activity. Outcome was mothers' willingness to have their child receive the target vaccine. Perceived benefits of vaccination were assessed before viewing the intervention and were included as a covariate in analyses, along with child gender. RESULTS: For HPV vaccine, there was a main effect of safety information (F(1,684) = 7.99, P = .005) and perceived benefits of vaccination (F(1,684) = 221.64, P < .001) on mothers' willingness to vaccinate. For influenza, perceived benefits of vaccination significantly related to willingness to vaccinate (F(1,462) = 105.78, P < .001). Child gender was not associated with willingness. CONCLUSIONS: Provider communication about vaccination may need to be tailored to the vaccine in question. A next step to increasing coverage for both HPV and influenza vaccines may be an intervention aimed at increasing mothers' perceived benefits of vaccination.
RCT Entities:
OBJECTIVE: To understand the effect of a health messaging intervention focused on provider communication about vaccination on mothers' willingness to vaccinate children against human papillomavirus (HPV) and seasonal influenza. METHODS: A total of 2476 mothers of 9- to 13-year-olds in the United States completed a Web-based survey in August 2014. Mothers were randomized to 1 of 2 groups targeting HPV or influenza vaccine. Mothers whose child had not received the target vaccine (ie, zero doses of HPV vaccine/no prior-year administration of influenza vaccine) were randomized to the intervention. The study used a 3 × 2 between-subjects design; illustrated vignettes depicted 1 of 3 levels of provider recommendation strength (brief mention of vaccination, strong recommendation of vaccination, or personal disclosure of vaccination of own children), and presence or absence of information comparing safety of vaccination to the safety of a common daily activity. Outcome was mothers' willingness to have their child receive the target vaccine. Perceived benefits of vaccination were assessed before viewing the intervention and were included as a covariate in analyses, along with child gender. RESULTS: For HPV vaccine, there was a main effect of safety information (F(1,684) = 7.99, P = .005) and perceived benefits of vaccination (F(1,684) = 221.64, P < .001) on mothers' willingness to vaccinate. For influenza, perceived benefits of vaccination significantly related to willingness to vaccinate (F(1,462) = 105.78, P < .001). Child gender was not associated with willingness. CONCLUSIONS: Provider communication about vaccination may need to be tailored to the vaccine in question. A next step to increasing coverage for both HPV and influenza vaccines may be an intervention aimed at increasing mothers' perceived benefits of vaccination.
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