Julie Ayre|Carissa Bonner|Erin Cvejic|Kirsten McCaffery
Randomized trial of planning tools to reduce unhealthy snacking: Implications for health literacy
University of Sydney|University of Sydney|University of Sydney|University of Sydney
objective guidance address health literacy often focuses health education rather tools facilitate action despite action important selfmanagement study evaluated online intervention informed health literate design principles behavior change theory reduce unhealthy snacking methods 440 participants recruited online randomized intervention 1 healthliterate action plan guided implementation intention 2 standard action plan selfguided implementation intention 3 education healthy snacking factsheet primary outcome selfreported unhealthy snacking followup 1 month results 373 participants 848 completed followup half sample adequate health literacy 52 half low 24 possibly low 25 health literacy measured newest vital sign nvs followup lower health literacy associated unhealthy snacks overall difference intervention groups however participants lower health literacy used healthliterate action plan reported less unhealthy snacking compared standard action plan reverse true higher health literacy scores b 17 p 003 people scoring 2 points mean nvs 34 sd 20 using healthliterate action plan reported eating 8 fewer serves unhealthy snacks whereas people scoring 2 points mean nvs reported eating 6 serves unhealthy snacks using tool conclusions findings suggest universal precautions approach currently recommended health information may less effective facilitating action tailoring health literacy level trial registration anzctr identifier actrn12617001194358