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Addressing Parents' Vaccine Concerns: A Randomized Trial of a Social Media Intervention.

Abstract：

INTRODUCTION:Successful strategies are needed to address parental vaccine hesitancy, a significant public health issue. The study objective was to assess whether an Internet-based platform with vaccine information and interactive social media components improved parents' vaccine-related attitudes. STUDY DESIGN:A three-arm RCT. SETTING/PARTICIPANTS:The study was conducted in a large Colorado integrated healthcare organization. Parents were enrolled during September 2013 through October 2015 and followed through November 2016; data were analyzed in 2017. Parents, recruited during pregnancy, were given a survey about vaccine-related attitudes at enrollment (i.e., baseline) and when their child was aged 3-5 months and 12-15 months (Timepoints 1 and 2, respectively). Parental vaccine hesitancy was assessed at baseline. INTERVENTION:Study participants were randomized to the following: a study website with vaccine information and social media components (VSM arm); a website with vaccine information only (VI); or usual care. MAIN OUTCOME MEASURES:Change in parental vaccine attitudes over time by baseline degree of vaccine hesitancy. RESULTS:Among 1,093 study participants, 945 (86.5%) completed all three surveys. Comparing baseline with Timepoint 1 among vaccine-hesitant parents, the VSM and VI arms were associated with significant improvements in attitudes regarding vaccination benefits compared to usual care (VSM mean change 0.23 on a 5-point scale, 95% CI=0.05, 0.40, VI mean change 0.22, 95% CI=0.04, 0.40). Comparing baseline with Timepoint 2 among hesitant parents, the VSM and VI arms were also associated with significant reductions in parental concerns about vaccination risks compared to usual care (VSM mean change -0.37, 95% CI= -0.60, -0.14, VI mean change -0.31, 95% CI= -0.55, -0.07). Self-efficacy around vaccine decision making also improved among vaccine-hesitant parents. No intervention effect was observed among parents not vaccine-hesitant at baseline. CONCLUSIONS:Among vaccine-hesitant parents, an Internet-based intervention improved parents' attitudes about vaccines. TRIAL REGISTRATION:This study was registered at www.clinicaltrials.gov NCT01873040.

journal_name

Am J Prev Med

journal_title

American journal of preventive medicine

authors

Daley MF,Narwaney KJ,Shoup JA,Wagner NM,Glanz JM

doi

10.1016/j.amepre.2018.04.010

subject

Has Abstract

pub_date

2018-07-01 00:00:00

pages

44-54

issue

eissn

0749-3797

issn

1873-2607

pii

S0749-3797(18)31687-8

journal_volume

pub_type

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Addressing Parents' Vaccine Concerns: A Randomized Trial of a Social Media Intervention.