The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety Disorder

Background: Generalised Anxiety Disorder (GAD) is a high prevalence, chronic disorder that can be treated effectively through a number of web-based programs. However, online web programs for GAD have not been compared to standard pharmacological treatment. The present study compares an Internet Inte...

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Main Authors: Helen Christensen, Andrew J. Mackinnon, Philip J. Batterham, Bridianne O'Dea, Adam J. Guastella, Kathleen M. Griffiths, Claire Eagleson, Kanupriya Kalia Hehir, Justin Kenardy, Kylie Bennett, Ian Hickie
Format: Article
Language:English
Published: Elsevier 2014-10-01
Series:Internet Interventions
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214782914000232
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author Helen Christensen
Andrew J. Mackinnon
Philip J. Batterham
Bridianne O'Dea
Adam J. Guastella
Kathleen M. Griffiths
Claire Eagleson
Kanupriya Kalia Hehir
Justin Kenardy
Kylie Bennett
Ian Hickie
author_facet Helen Christensen
Andrew J. Mackinnon
Philip J. Batterham
Bridianne O'Dea
Adam J. Guastella
Kathleen M. Griffiths
Claire Eagleson
Kanupriya Kalia Hehir
Justin Kenardy
Kylie Bennett
Ian Hickie
author_sort Helen Christensen
collection DOAJ
description Background: Generalised Anxiety Disorder (GAD) is a high prevalence, chronic disorder that can be treated effectively through a number of web-based programs. However, online web programs for GAD have not been compared to standard pharmacological treatment. The present study compares an Internet Intervention (Active Website) for GAD and a selective serotonin re-uptake inhibitor (SSRI) (Sertraline), with an online attention placebo condition (Control Website). Objective: To evaluate the effectiveness of a web-based intervention for GAD in comparison to standard antidepressant medication and an online attention placebo condition over a 10 week period, and with a follow-up at 6 and at 12 months. Methods: The study was part of a larger scale prevention program. 152 people aged 18–30 years who met the criteria for GAD on the MINI received referrals to the treatment sub-study. The primary outcome was anxiety symptoms measured by the Generalised Anxiety Disorder 7-item Scale (GAD-7), and the secondary outcome was depression measured by the Center for Epidemiologic Studies Depression Scale (CES-D). Results: There was very poor uptake to the trial (around 14% of those referred). However, even in this small sample, Sertraline compared to the Control Website was significant at post-test and 6 months, and the Internet Intervention was significant at post-test. Relative to the Control Website condition at post-test, for the GAD-7 and CES-D respectively, the between group effect sizes were d = 2.43 and d = 0.68 for the Active Website condition, and 3.00 and 0.20 for the Sertraline condition. The within group effect size for the Control Website from baseline to post-test was −0.04 for the GAD-7 and 0.31 for CES-D respectively. Conclusions: The findings will need to be extended and confirmed in a larger trial. However, they do suggest that both standard pharmacological treatment and online interventions for GAD are effective in samples with a diagnosis of GAD recruited via online methods. The low rate of engagement for face-to-face treatment by those who opt first for a web program suggests that treatment preferences are important in help-seeking.
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spelling doaj.art-1947b7ae3c244be28f6562466a5f7a752022-12-22T03:32:30ZengElsevierInternet Interventions2214-78292014-10-011416917410.1016/j.invent.2014.08.002The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety DisorderHelen Christensen0Andrew J. Mackinnon1Philip J. Batterham2Bridianne O'Dea3Adam J. Guastella4Kathleen M. Griffiths5Claire Eagleson6Kanupriya Kalia Hehir7Justin Kenardy8Kylie Bennett9Ian Hickie10Black Dog Institute, Hospital Road, Randwick 2031, AustraliaOrygen Research Centre, The University of Melbourne, Melbourne, AustraliaNational Institute for Mental Health Research, The Australian National University, Canberra, AustraliaBlack Dog Institute, Hospital Road, Randwick 2031, AustraliaBrain & Mind Research Institute, The University of Sydney, Sydney, AustraliaNational Institute for Mental Health Research, The Australian National University, Canberra, AustraliaBrain & Mind Research Institute, The University of Sydney, Sydney, AustraliaAustralian Primary Health Care Research Institute, Research School of Population Health, College of Medicine, Biology and Environment, Australian National University, Canberra, AustraliaCentre for National Research on Disability and Rehabilitation Medicine, Mayne School of Medicine, The University of Queensland, Queensland, AustraliaNational Institute for Mental Health Research, The Australian National University, Canberra, AustraliaBrain & Mind Research Institute, The University of Sydney, Sydney, AustraliaBackground: Generalised Anxiety Disorder (GAD) is a high prevalence, chronic disorder that can be treated effectively through a number of web-based programs. However, online web programs for GAD have not been compared to standard pharmacological treatment. The present study compares an Internet Intervention (Active Website) for GAD and a selective serotonin re-uptake inhibitor (SSRI) (Sertraline), with an online attention placebo condition (Control Website). Objective: To evaluate the effectiveness of a web-based intervention for GAD in comparison to standard antidepressant medication and an online attention placebo condition over a 10 week period, and with a follow-up at 6 and at 12 months. Methods: The study was part of a larger scale prevention program. 152 people aged 18–30 years who met the criteria for GAD on the MINI received referrals to the treatment sub-study. The primary outcome was anxiety symptoms measured by the Generalised Anxiety Disorder 7-item Scale (GAD-7), and the secondary outcome was depression measured by the Center for Epidemiologic Studies Depression Scale (CES-D). Results: There was very poor uptake to the trial (around 14% of those referred). However, even in this small sample, Sertraline compared to the Control Website was significant at post-test and 6 months, and the Internet Intervention was significant at post-test. Relative to the Control Website condition at post-test, for the GAD-7 and CES-D respectively, the between group effect sizes were d = 2.43 and d = 0.68 for the Active Website condition, and 3.00 and 0.20 for the Sertraline condition. The within group effect size for the Control Website from baseline to post-test was −0.04 for the GAD-7 and 0.31 for CES-D respectively. Conclusions: The findings will need to be extended and confirmed in a larger trial. However, they do suggest that both standard pharmacological treatment and online interventions for GAD are effective in samples with a diagnosis of GAD recruited via online methods. The low rate of engagement for face-to-face treatment by those who opt first for a web program suggests that treatment preferences are important in help-seeking.http://www.sciencedirect.com/science/article/pii/S2214782914000232Anxiety disordersInterventionEarly interventionInternetOnline systemsCognitive behavioural therapy
spellingShingle Helen Christensen
Andrew J. Mackinnon
Philip J. Batterham
Bridianne O'Dea
Adam J. Guastella
Kathleen M. Griffiths
Claire Eagleson
Kanupriya Kalia Hehir
Justin Kenardy
Kylie Bennett
Ian Hickie
The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety Disorder
Internet Interventions
Anxiety disorders
Intervention
Early intervention
Internet
Online systems
Cognitive behavioural therapy
title The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety Disorder
title_full The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety Disorder
title_fullStr The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety Disorder
title_full_unstemmed The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety Disorder
title_short The effectiveness of an online e-health application compared to attention placebo or Sertraline in the treatment of Generalised Anxiety Disorder
title_sort effectiveness of an online e health application compared to attention placebo or sertraline in the treatment of generalised anxiety disorder
topic Anxiety disorders
Intervention
Early intervention
Internet
Online systems
Cognitive behavioural therapy
url http://www.sciencedirect.com/science/article/pii/S2214782914000232
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