Table of Contents
Advances in Psychiatry
Volume 2014 (2014), Article ID 165818, 8 pages
http://dx.doi.org/10.1155/2014/165818
Research Article

Screening for Psychiatric Disorders in Bariatric Surgery Candidates with the German Version of the Patient Health Questionnaire

1Department of Psychiatry, Psychotherapy and Psychosomatics, Ludwig-Maximilians University Munich, Nußbaumstraße 7, 80336 Munich, Germany
2Department of General, Visceral, Transplantation, Vascular, and Thoracic Surgery, Ludwig-Maximilians University Munich, Marchioninistraße 15, 81377 Munich, Germany
3KBO Heckscher Clinic for Childhood and Adolescent Psychiatry, Deisenhofener Straße 28, 81539 Munich, Germany
4Privatklinik Meiringen, Willigen, 3860 Meiringen, Switzerland

Received 28 January 2014; Revised 10 April 2014; Accepted 10 April 2014; Published 27 April 2014

Academic Editor: Xingguang Luo

Copyright © 2014 Ulrich Palm et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective. Obesity has been linked to psychiatric disorders in several studies. Prevalence and severity of psychiatric disorders are high in patients undergoing bariatric surgery. Thus, psychiatric assessment of bariatric surgery candidates has become a standard procedure. However, socially desirable responding leads to biased results in self-reported questionnaires. Here, bariatric surgery candidates were screened with the Patient Health Questionnaire (PHQ-D) additionally to the psychiatric examination. Method. 355 bariatric surgery candidates filled in the PHQ-D before the psychiatric examination as a part of the surgery assessment procedure. PHQ-D results were compared to psychiatric diagnoses and body mass index (BMI). Results. Gender ratio, mean BMI, and age were comparable to earlier studies. Depressive and somatization symptoms did not correlate to BMI. However, females showed higher prevalence of psychiatric disorders with elevated syndrome severity in depressive and somatization disorders, as well as more frequent antidepressant intake. Eating disorders and addiction disorders were rarely reported. Conclusion. The findings suggest a socially desirable responding when filling in the PHQ-D before bariatric surgery. The use of the PHQ-D in this patient sample could be augmented by psychometric tests with internal correction and validation scales. Furthermore, psychiatric examination should be separated from the surgery evaluation process.