Multiple Risk Expert Systems Interventions: Impact of Simultaneous Stage-Matched Expert System Interventions for Smoking, High-Fat Diet, and Sun Exposure in a Population of Parents.

Cancer Prevention Research Center, University of Rhode Island, Kingston, RI 02881-0808, USA.
Health Psychology (Impact Factor: 3.59). 10/2004; 23(5):503-16. DOI: 10.1037/0278-6133.23.5.503
Source: PubMed


Three stage-based expert system interventions for smoking, high-fat diet, and unsafe sun exposure were evaluated in a sample of 2,460 parents of teenagers. Eighty-four percent of the eligible parents were enrolled in a 2-arm randomized control trial, with the treatment group receiving individualized feedback reports for each of their relevant behaviors at 0, 6, and 12 months as well as a multiple behavior manual. At 24 months, the expert system outperformed the comparison condition across all 3 risk behaviors, resulting in 22% of the participants in action or maintenance for smoking (vs. 16% for the comparison condition), 34% for diet (vs. 26%), and 30% for sun exposure (vs. 22%). Proactive, home-based, and stage-matched expert systems can produce significant multiple behavior changes in at-risk populations where the majority of participants are not prepared to change.

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    • "Study 1. Study 1 included parents from another schoolbased study who were at risk for any of three risk behaviors , including dietary fat. The original sample and outcomes are described elsewhere (Prochaska et al., 2004 "
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    • "The intervention effect was considerably smaller (0.12 points) than that reported in the U.S. SCAPE intervention (Glanz et al., 2010) (0.23 points) where intervention delivery was via a tailored mail intervention package . However, other studies using telephone-delivered intervention sessions, similarly achieved only small improvements in sunscreen use, and no significant change in sun avoidance (Head et al., 2013; Prochaska et al., 2004). Armstrong et al.'s intervention was more successful using SMS-delivered reminders with a significant increase in the proportion of participants who dispensed sunscreen daily (56%) compared to control (30%) (Armstrong et al., 2009 "
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