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Computer-Delivered Interventions for Health Promotion and Behavioral Risk Reduction: A Meta-Analysis of 75 Randomized Controlled Trials, 1988 – 2007

Identifieur interne : 000587 ( Ncbi/Merge ); précédent : 000586; suivant : 000588

Computer-Delivered Interventions for Health Promotion and Behavioral Risk Reduction: A Meta-Analysis of 75 Randomized Controlled Trials, 1988 – 2007

Auteurs : David B. Portnoy ; Lori A. J. Scott-Sheldon ; Blair T. Johnson ; Michael P. Carey

Source :

Preventive medicine [ 0091-7435 ] ; 2008.

RBID : PMC:2572996

Abstract

Objective

Use of computers to promote healthy behavior is increasing. To evaluate the efficacy of these computer-delivered interventions, we conducted a meta-analysis of the published literature.

Method

Studies examining health domains related to the leading health indicators outlined in Healthy People 2010 were selected. Data from 75 randomized controlled trials, published between 1988 and 2007, with 35,685 participants and 82 separate interventions were included. All studies were coded independently by two raters for study and participant characteristics, design and methodology, and intervention content. We calculated weighted mean effect sizes for theoretically-meaningful psychosocial and behavioral outcomes; moderator analyses determined the relation between study characteristics and the magnitude of effect sizes for heterogeneous outcomes.

Results

Compared with controls, participants who received a computer-delivered intervention improved several hypothesized antecedents of health behavior (knowledge, attitudes, intentions); intervention recipients also improved health behaviors (nutrition, tobacco use, substance use, safer sexual behavior, binge/purge behaviors) and general health maintenance. Several sample, study and intervention characteristics moderated the psychosocial and behavioral outcomes.

Conclusion

Computer-delivered interventions can lead to improved behavioral health outcomes at first post-intervention assessment. Interventions evaluating outcomes at extended assessment periods are needed to evaluate the longer-term efficacy of computer-delivered interventions.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2572996

DOI: 10.1016/j.ypmed.2008.02.014
PubMed: 18403003
PubMed Central: 2572996

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PMC:2572996

Le document en format XML

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<p id="P1">Use of computers to promote healthy behavior is increasing. To evaluate the efficacy of these computer-delivered interventions, we conducted a meta-analysis of the published literature.</p>
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<sec sec-type="methods" id="S2"><title>Method</title>
<p id="P2">Studies examining health domains related to the leading health indicators outlined in <italic>Healthy People 2010</italic>
 were selected. Data from 75 randomized controlled trials, published between 1988 and 2007, with 35,685 participants and 82 separate interventions were included. All studies were coded independently by two raters for study and participant characteristics, design and methodology, and intervention content. We calculated weighted mean effect sizes for theoretically-meaningful psychosocial and behavioral outcomes; moderator analyses determined the relation between study characteristics and the magnitude of effect sizes for heterogeneous outcomes.</p>
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<sec id="S3"><title>Results</title>
<p id="P3">Compared with controls, participants who received a computer-delivered intervention improved several hypothesized antecedents of health behavior (knowledge, attitudes, intentions); intervention recipients also improved health behaviors (nutrition, tobacco use, substance use, safer sexual behavior, binge/purge behaviors) and general health maintenance. Several sample, study and intervention characteristics moderated the psychosocial and behavioral outcomes.</p>
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<sec id="S4"><title>Conclusion</title>
<p id="P4">Computer-delivered interventions can lead to improved behavioral health outcomes at first post-intervention assessment. Interventions evaluating outcomes at extended assessment periods are needed to evaluate the longer-term efficacy of computer-delivered interventions.</p>
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<contrib-group><contrib contrib-type="author"><name><surname>Portnoy</surname>
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Center for Health, Intervention, and Prevention, University of Connecticut</aff>
<aff id="A2"><label>b</label>
Center for Health and Behavior, Syracuse University</aff>
<author-notes><corresp id="cor1">Contact: David B. Portnoy, MA or Lori A. J. Scott-Sheldon, PhD, Address: Center for Health, Intervention, and Prevention, 2006 Hillside Rd., Unit 1248, University of Connecticut, Storrs, Connecticut, USA, 06269-1248, Telephone: (860) 486-9020, Fax: (860) 486-4876, Email: <email>david.portnoy@uconn.edu</email>
 or <email>Lajss@syr.edu</email>
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<pub-date pub-type="nihms-submitted"><day>23</day>
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<year>2008</year>
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<year>2008</year>
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<year>2008</year>
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<pub-date pub-type="pmc-release"><day>1</day>
<month>7</month>
<year>2009</year>
</pub-date>
<volume>47</volume>
<issue>1</issue>
<fpage>3</fpage>
<lpage>16</lpage>
<abstract><sec id="S1"><title>Objective</title>
<p id="P1">Use of computers to promote healthy behavior is increasing. To evaluate the efficacy of these computer-delivered interventions, we conducted a meta-analysis of the published literature.</p>
</sec>
<sec sec-type="methods" id="S2"><title>Method</title>
<p id="P2">Studies examining health domains related to the leading health indicators outlined in <italic>Healthy People 2010</italic>
 were selected. Data from 75 randomized controlled trials, published between 1988 and 2007, with 35,685 participants and 82 separate interventions were included. All studies were coded independently by two raters for study and participant characteristics, design and methodology, and intervention content. We calculated weighted mean effect sizes for theoretically-meaningful psychosocial and behavioral outcomes; moderator analyses determined the relation between study characteristics and the magnitude of effect sizes for heterogeneous outcomes.</p>
</sec>
<sec id="S3"><title>Results</title>
<p id="P3">Compared with controls, participants who received a computer-delivered intervention improved several hypothesized antecedents of health behavior (knowledge, attitudes, intentions); intervention recipients also improved health behaviors (nutrition, tobacco use, substance use, safer sexual behavior, binge/purge behaviors) and general health maintenance. Several sample, study and intervention characteristics moderated the psychosocial and behavioral outcomes.</p>
</sec>
<sec id="S4"><title>Conclusion</title>
<p id="P4">Computer-delivered interventions can lead to improved behavioral health outcomes at first post-intervention assessment. Interventions evaluating outcomes at extended assessment periods are needed to evaluate the longer-term efficacy of computer-delivered interventions.</p>
</sec>
</abstract>
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<contract-num rid="MH1">R01 MH058563-05</contract-num>
<contract-sponsor id="MH1">National Institute of Mental Health : NIMH</contract-sponsor>
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<name sortKey="Scott Sheldon, Lori A J" sort="Scott Sheldon, Lori A J" uniqKey="Scott Sheldon L" first="Lori A. J." last="Scott-Sheldon">Lori A. J. Scott-Sheldon</name>
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Computer-Delivered Interventions for Health Promotion and Behavioral Risk Reduction: A Meta-Analysis of 75 Randomized Controlled Trials, 1988 – 2007

Computer-Delivered Interventions for Health Promotion and Behavioral Risk Reduction: A Meta-Analysis of 75 Randomized Controlled Trials, 1988 – 2007

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