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Does Internet-based cognitive behavioral therapy (iCBT) prevent major depressive episode for workers? A 12-month follow-up of a randomized controlled trial

Published online by Cambridge University Press:  07 January 2015

K. Imamura ,
N. Kawakami ,
T. A. Furukawa ,
Y. Matsuyama ,
A. Shimazu ,
R. Umanodan ,
S. Kawakami  and
K. Kasai
K. Imamura
Affiliation:
Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
N. Kawakami*
Affiliation:
Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
T. A. Furukawa
Affiliation:
Departments of Health Promotion and Human Behavior and of Clinical Epidemiology, Graduate School of Medicine/School of Public Health, Kyoto University, Kyoto, Japan
Y. Matsuyama
Affiliation:
Department of Biostatistics, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
A. Shimazu
Affiliation:
Department of Mental Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
R. Umanodan
Affiliation:
Kyoto office, Health Wave Co., Ltd, Kyoto, Japan
S. Kawakami
Affiliation:
Nippon University College of the Arts, Tokyo, Japan
K. Kasai
Affiliation:
Department of Neuropsychiatry, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
*
* Address for correspondence: Dr N. Kawakami, Department of Mental Health, Graduate School of Medicine, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan (Email: [email protected])
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Abstract

Background

In this study we investigated whether an Internet-based computerized cognitive behavioral therapy (iCBT) program can decrease the risk of DSM-IV-TR major depressive episodes (MDE) during a 12-month follow-up of a randomized controlled trial of Japanese workers.

Method

Participants were recruited from one company and three departments of another company. Those participants who did not experience MDE in the past month were randomly allocated to intervention or control groups (n = 381 for each). A 6-week, six-lesson iCBT program was provided to the intervention group. While the control group only received the usual preventive mental health service for the first 6 months, the control group was given a chance to undertake the iCBT program after a 6-month follow-up. The primary outcome was a new onset of DSM-IV-TR MDE during the 12-month follow-up, as assessed by means of the web version of the WHO Composite International Diagnostic Interview (CIDI), version 3.0 depression section.

Results

The intervention group had a significantly lower incidence of MDE at the 12-month follow-up than the control group (Log-rank χ2 = 7.04, p < 0.01). The hazard ratio for the intervention group was 0.22 (95% confidence interval 0.06–0.75), when estimated by the Cox proportional hazard model.

Conclusions

The present study demonstrates that an iCBT program is effective in preventing MDE in the working population. However, it should be noted that MDE was measured by self-report, while the CIDI can measure the episodes more strictly following DSM-IV criteria.

Keywords

Depressioninternet cognitive behavioral therapypreventionworkers
Type
Original Articles
Information
Psychological Medicine , Volume 45 , Issue 9 , July 2015 , pp. 1907 - 1917
Copyright
Copyright © Cambridge University Press 2014 

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References

APA (2000). Diagnostic and Statistical Manual of Mental Disorders: DSM-IV-TR. American Psychiatric Association: Washington, DC.Google Scholar
Beck, AT, Steer, RA, Brown, GK (1996). BDI-II, Beck Depression Inventory: Manual. Psychological Corp./Harcourt Brace: San Antonio/Boston.Google Scholar
Calear, AL, Christensen, H, Mackinnon, A, Griffiths, KM, O'Kearney, R (2009). The YouthMood Project: a cluster randomized controlled trial of an online cognitive behavioral program with adolescents. Journal of Consulting and Clinical Psychology 77, 1021–1032.Google Scholar
Christensen, H, Griffiths, KM, Jorm, AF (2004). Delivering interventions for depression by using the internet: randomised controlled trial. British Medical Journal 328, 265–268A.Google Scholar
Christensen, H, Griffiths, KM, Korten, A (2002). Web-based cognitive behavior therapy: analysis of site usage and changes in depression and anxiety scores. Journal of Medical Internet Research 4, e3.Google Scholar
Cohen, J (1992). A power primer. Psychological Bulletin 112, 155–159.Google Scholar
Cuijpers, P, Munoz, RF, Clarke, GN, Lewinsohn, PM (2009). Psychoeducational treatment and prevention of depression: the ‘Coping with Depression’ course thirty years later. Clinical Psychology Review 29, 449–458.Google Scholar
Cuijpers, P, van Straten, A, Smit, F, Mihalopoulos, C, Beekman, A (2008). Preventing the onset of depressive disorders: a meta-analytic review of psychological interventions. American Journal of Psychiatry 165, 1272–1280.CrossRefGoogle ScholarPubMed
Furukawa, TA, Kawakami, N, Saitoh, M, Ono, Y, Nakane, Y, Nakamura, Y, Tachimori, H, Iwata, N, Uda, H, Nakane, H, Watanabe, M, Naganuma, Y, Hata, Y, Kobayashi, M, Miyake, Y, Takeshima, T, Kikkawa, T (2008). The performance of the Japanese version of the K6 and K10 in the World Mental Health Survey Japan. International Journal of Methods in Psychiatric Research 17, 152–158.Google Scholar
Gega, L, Marks, I, Mataix-Cols, D (2004). Computer-aided CBT self-help for anxiety and depressive disorders: experience of a London clinic and future directions. Journal of Clinical Psychology 60, 147–157.Google Scholar
Hiroe, T, Kojima, M, Yamamoto, I, Nojima, S, Kinoshita, Y, Hashimoto, N, Watanabe, N, Maeda, T, Furukawa, TA (2005). Gradations of clinical severity and sensitivity to change assessed with the Beck Depression Inventory-II in Japanese patients with depression. Psychiatry Research 135, 229–235.Google Scholar
Hosman, C, Jané Llopis, E, Saxena, S (2004). Prevention of Mental Disorders: Effective Interventions and Policy Options: Summary Report. World Health Organization: Geneva.Google Scholar
Imamura, K, Kawakami, N, Furukawa, TA, Matsuyama, Y, Shimazu, A, Umanodan, R, Kawakami, S, Kasai, K (2014). Effects of an Internet-Based Cognitive Behavioral Therapy (iCBT) Program in manga format on improving subthreshold depressive symptoms among healthy workers: a randomized controlled trial. PLoS ONE 9, e97167.Google Scholar
Inoue, A, Kawakami, N, Tsuno, K, Tomioka, K, Nakanishi, M (2013). Organizational Justice and Major Depressive Episodes in Japanese Employees: A Cross-sectional Study. Journal of Occupational Health 55, 47–55.CrossRefGoogle ScholarPubMed
Kawakami, N, Takeshima, T, Ono, Y, Uda, H, Hata, Y, Nakane, Y, Nakane, H, Iwata, N, Furukawa, TA, Kikkawa, T (2005). Twelve-month prevalence, severity, and treatment of common mental disorders in communities in Japan: preliminary finding from the World Mental Health Japan Survey 2002–2003. Psychiatry and Clinical Neurosciences 59, 441–452.Google Scholar
Kessler, RC (2012). The costs of depression. Psychiatric Clinics of North America 35, 1–14.Google Scholar
Kessler, RC, Andrews, G, Colpe, LJ, Hiripi, E, Mroczek, DK, Normand, SL, Walters, EE, Zaslavsky, AM (2002). Short screening scales to monitor population prevalences and trends in non-specific psychological distress. Psychological Medicine 32, 959–976.Google Scholar
Kessler, RC, Ustun, TB (2004). The World Mental Health (WMH) Survey Initiative Version of the World Health Organization (WHO) Composite International Diagnostic Interview (CIDI). International Journal of Methods in Psychiatric Research 13, 93–121.CrossRefGoogle ScholarPubMed
Lewinsohn, PM (1984). The Coping with Depression Course: a Psychoeducational Intervention for Unipolar Depression. Castalia Publishing Co.: Eugene, OR.Google Scholar
Lintvedt, OK, Griffiths, KM, Sorensen, K, Ostvik, AR, Wang, CE, Eisemann, M, Waterloo, K (2013). Evaluating the effectiveness and efficacy of unguided internet-based self-help intervention for the prevention of depression: a randomized controlled trial. Clinical Psychology and Psychotherapy 20, 10–27.Google Scholar
Patten, SB (2003). Prevention of depressive symptoms through the use of distance technologies. Psychiatric Services 54, 396–398.Google Scholar
Peters, L, Clark, D, Carroll, F (1998). Are computerized interviews equivalent to human interviewers? CIDI-Auto versus CIDI in anxiety and depressive disorders. Psychological Medicine 28, 893–901.Google Scholar
Robins, JM, Finkelstein, DM (2000). Correcting for noncompliance and dependent censoring in an AIDS clinical trial with inverse probability of censoring weighted (IPCW) log-rank tests. Biometrics 56, 779–788.Google Scholar
Rowe, MM (1999). Teaching health-care providers coping: results of a two-year study. Journal of Behavioral Medicine 22, 511–527.Google Scholar
Ruwaard, J, Lange, A, Bouwman, M, Broeksteeg, J, Schrieken, B (2007). E-mailed standardized cognitive behavioural treatment of work-related stress: a randomized controlled trial. Cognitive Behaviour Therapy 36, 179–192.CrossRefGoogle ScholarPubMed
Saarni, SI, Suvisaari, J, Sintonen, H, Pirkola, S, Koskinen, S, Aromaa, A, Lonnqvist, J (2007). Impact of psychiatric disorders on health-related quality of life: general population survey. British Journal of Psychiatry 190, 326–332.Google Scholar
Shimoda, H, Inoue, A, Tsuno, K, Kawakami, N (2014). One-year test-retest reliability of a Japanese web-based version of the WHO Composite International Diagnostic Interview (CIDI) for major depression in a working population. International Journal of Methods in Psychiatric Research. Published online: 21 November 2014 . doi:10.1002/mpr.1437.Google Scholar
Spek, V, Cuijpers, P, Nyklicek, I, Riper, H, Keyzer, J, Pop, V (2007). Internet-based cognitive behaviour therapy for symptoms of depression and anxiety: a meta-analysis. Psychological Medicine 37, 319–328.Google Scholar
Titov, N, Andrews, G, Sachdev, P (2010). Computer-delivered cognitive behavioural therapy: effective and getting ready for dissemination. F1000 Medicine Reports 2, 49.CrossRefGoogle ScholarPubMed
WHO, Department of Mental Health and Substance Abuse (2001). Atlas: Mental Health Resources in the World 2001. World Health Organization: Geneva.Google Scholar
WHO, Department of Mental Health and Substance Abuse (2005). Mental Health Atlas 2005. World Health Organization: Geneva.Google Scholar
WHO, Department of Mental Health and Substance Abuse (2011). Mental Health Atlas 2011. World Health Organization: Geneva.Google Scholar