Key Points Question Can text messaging with behavioral insights increase participation in COVID-19 vaccine outreach? Findings In this randomized clinical trial comprising 16 045 participants, text messaging did not result in… Click to show full abstract
Key Points Question Can text messaging with behavioral insights increase participation in COVID-19 vaccine outreach? Findings In this randomized clinical trial comprising 16 045 participants, text messaging did not result in a higher response rate than outbound telephone calls. Behaviorally informed messaging did not result in a significantly higher response than usual content. Meaning Text messaging offers a low-cost alternative to outbound telephone calls, but additional efforts are needed to increase vaccine uptake.
               
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