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The efficacy of internet interventions for depression and anxiety disorders: a review of randomised controlled trials
Author(s) -
Griffiths Kathleen M,
Farrer Louise,
Christensen Helen
Publication year - 2010
Publication title -
medical journal of australia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.904
H-Index - 131
eISSN - 1326-5377
pISSN - 0025-729X
DOI - 10.5694/j.1326-5377.2010.tb03685.x
Subject(s) - psychological intervention , anxiety , medicine , clinical trial , randomized controlled trial , psychiatry , referral , intervention (counseling) , depression (economics) , mental health , family medicine , economics , macroeconomics
Objective: To review the outcomes, nature and quality of published randomised controlled trials of preventive and treatment internet interventions for depression and anxiety disorders, and to document the availability of effective interventions. Data sources: Previous reviews of internet interventions for mental health and related conditions were updated using an extension of the original methodology. All studies included in the original reviews and more recent eligible trials (published before June 2009) were included, together with any trials identified from a search of the health intervention web portal Beacon and the Journal of Medical Internet Research . Study selection: A total of 29 reports describing 26 trials satisfied the inclusion criteria. Data synthesis: All trials employed a cognitive behaviour therapy intervention program. Of the 26 trials, 23 demonstrated some evidence of effectiveness relative to controls. Effect size differences ranged from 0.42 to 0.65 for depression interventions involving participants with clinically significant symptoms of depression, and 0.29 to 1.74 for anxiety interventions involving participants with a diagnosed anxiety disorder. Of the five effective English‐language programs, three are available to the public without charge and two can be accessed at a small cost through health practitioner referral. Conclusion: Internet interventions for depression and anxiety disorders offer promise for use as self‐help applications for consumers or as an adjunct to usual care.