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Open Access Study protocol

Treatment of bipolar disorder in the Netherlands and concordance with treatment guidelines: study protocol of an observational, longitudinal study on naturalistic treatment of bipolar disorder in everyday clinical practice

Joannes W Renes1*, Eline J Regeer1, Trijntje YG van der Voort2, Willem A Nolen3 and Ralph W Kupka12

Author Affiliations

1 Altrecht Institute for Mental Health Care, Lange Nieuwstraat 119, 3512 PG Utrecht, The Netherlands

2 Department of Psychiatry, VU University Medical Center, A.J. Ernststraat 1187, 1081 HL Amsterdam, The Netherlands

3 Department of Psychiatry, University Medical Center, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands

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BMC Psychiatry 2014, 14:58  doi:10.1186/1471-244X-14-58

Published: 28 February 2014

Abstract

Background

While various guidelines on the treatment of bipolar disorder have been published over the last decades, adherence to guidelines has been reported to be low. In this article we describe the protocol of a nationwide, multicenter, longitudinal, non-intervention study on the treatment of bipolar disorder in the Netherlands. Study aims are to provide information on the nature and content of outpatient treatment of bipolar disorder, to determine to what extent treatment is in concordance with the Dutch guideline for the treatment of bipolar disorder (2008), and to investigate the relationship of guideline concordance with symptomatic and functional outcome.

Methods/Design

Between December 2009 and February 2010, all psychiatrists registered as member of the Dutch Psychiatric Association received a questionnaire with questions about their treatment setting, and whether they would be willing to participate in further research. Psychiatrists treating adult outpatients with bipolar disorder were invited to participate. Consenting psychiatrist subsequently approached all their patients with bipolar disorder. The study is performed with written patient and caregiver surveys at baseline and after 12 months, including data on demographics, illness characteristics, organization of care, treatments received, symptomatic and functional outcome, quality of life, and burden of care for informal caregivers.

Discussion

This study will provide information on the naturalistic treatment of bipolar disorder in the Netherlands, as well as degree of concordance of this treatment with the Dutch guideline, and its relationship with symptomatic and functional outcome. Limitations of a survey-based study are discussed.

Keywords:
Bipolar disorder; Clinical practice; Guidelines; Care as usual