Depression and Anxiety Disorders Impact in the Quality of Life of Patients with Inflammatory Bowel Disease

Abstract

Objective. Anxiety and depression have a negative influence in the quality of life. The aim of the study was to determinate the levels of sensitivity and specificity of the Anxiety and Hospital Depression Scale (HADS) and compare the quality of life in patients with inflammatory bowel disease (IBD) and depression or anxiety. Methods. This study included 104 patients with diagnosis of IBD. Each patient received psychiatric intervention with SCID-I (Structured Clinical Interview for DSMIV Axis I Disorders) instrument as a gold standard to stablish the cut-off points of HADS. Quality of life was also evaluated with IBDQ-32. Demographic and clinical variables were collected. Results. Most of the patients reported a high quality of life (73.1%, $n=76$ ), while 25.0% ( $n=26$ ) express a moderate quality of life. The ROC curves for both psychiatric entities showed an adequate discriminative capacity of the HADS-anxiety dimension ( $\text{AUC}=0.84$ , $95\%\text{CI}=0.76$ -0.92) with a limited discriminability of the HADS-depression dimension ( $\text{AUC}=0.58$ , $95\%\text{CI}=0.46$ -0.70) using the proposed scoring of 8 as a cut-off point. Conclusions. Anxiety and depression impact negatively in the quality of life in Mexican patients with IBD. The Mexican version of HADS had acceptable internal consistency and external validity, with moderate sensitivity and specificity for clearly identifying clinical cases of anxiety and depression in patients with IBD.