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A meta-analysis of computer-tailored interventions for health behavior change.


ABSTRACT:

Objective

Computer-tailored interventions have become increasingly common for facilitating improvement in behaviors related to chronic disease and health promotion. A sufficient number of outcome studies from these interventions are now available to facilitate the quantitative analysis of effect sizes, permitting moderator analyses that were not possible with previous systematic reviews.

Method

The present study employs meta-analytic techniques to assess the mean effect for 88 computer-tailored interventions published between 1988 and 2009 focusing on four health behaviors: smoking cessation, physical activity, eating a healthy diet, and receiving regular mammography screening. Effect sizes were calculated using Hedges g. Study, tailoring, and demographic moderators were examined by analyzing between-group variance and meta-regression.

Results

Clinically and statistically significant overall effect sizes were found across each of the four behaviors. While effect sizes decreased after intervention completion, dynamically tailored interventions were found to have increased efficacy over time as compared with tailored interventions based on one assessment only. Study effects did not differ across communication channels nor decline when up to three behaviors were identified for intervention simultaneously.

Conclusion

This study demonstrates that computer-tailored interventions have the potential to improve health behaviors and suggests strategies that may lead to greater effectiveness of these techniques.

SUBMITTER: Krebs P 

PROVIDER: S-EPMC2939185 | biostudies-literature | 2010 Sep-Oct

REPOSITORIES: biostudies-literature

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A meta-analysis of computer-tailored interventions for health behavior change.

Krebs Paul P   Prochaska James O JO   Rossi Joseph S JS  

Preventive medicine 20100615 3-4


<h4>Objective</h4>Computer-tailored interventions have become increasingly common for facilitating improvement in behaviors related to chronic disease and health promotion. A sufficient number of outcome studies from these interventions are now available to facilitate the quantitative analysis of effect sizes, permitting moderator analyses that were not possible with previous systematic reviews.<h4>Method</h4>The present study employs meta-analytic techniques to assess the mean effect for 88 com  ...[more]

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