Jennifer Di Noia|Isobel R. Contento|James O. Prochaska
Computer-Mediated Intervention Tailored on Transtheoretical Model Stages and Processes of Change Increases Fruit and Vegetable Consumption among Urban African-American Adolescents
Columbia University|University of Rhode Island|Columbia University|University of Rhode Island|Columbia University|University of Rhode Island
purpose examine efficacy intervention based transtheoretical model ttm increasing fruit vegetable consumption among economically disadvantaged africanamerican adolescents design pretestposttest quasiexperimental study setting youth services agencies located new york new jersey pennsylvania agencies assigned computer intervention cin nonintervention control study arms subjects total 507 africanamerican adolescents ages 11 14 years intervention youths cin arm completed four 30minute intervention sessions tailored ttm stages processes change measures selfreported fruit vegetable consumption stages pros cons selfefficacy consumption analysis intervention effects examined analysis covariance models controlled demographic variables baseline measures outcome chisquare analyses used examine betweenarm differences youths stage progressions results adjustment covariates pros p lt 025 fruit vegetable consumption p lt 001 varied significantly study arm youths cin arm higher pro scores fruit vegetable consumption controls youths cin arm control arm progressed later stages maintained recommended intake levels p lt 05 conclusions ttmbased intervention increase fruit vegetable intake effect positive changes ttm variables related intake among economically disadvantaged africanamerican adolescents