# Mental health and Crohn's disease: evaluating depression through a case-referent study

## TL;DR

This study found that adults with Crohn's disease experience significantly higher rates and severity of depression compared to healthy individuals.

## Contribution

The study provides new evidence of a strong association between Crohn's disease and depression using a case-referent design.

## Key findings

- Crohn's disease patients had significantly higher depression scores than controls (15.55 vs. 5.76; p<0.001).
- Depression prevalence was 32.1% in Crohn's disease patients versus 9.5% in controls.
- Severe depression was observed only in the Crohn's disease group.

## Abstract

The aim of this study was to compare the frequency and severity of depressive symptoms between adults diagnosed with Crohn's disease and a demographically matched group of healthy individuals. Depressive symptoms were assessed using the Beck Depression Inventory, a validated self-report instrument.

The study employed a comparative and exploratory case–control design to evaluate whether patients with Crohn's disease report significantly higher levels of depressive symptomatology than healthy controls. Patients were recruited from various regions in southern Spain.

A total of 84 participants were included, comprising 42 individuals with Crohn's disease and 42 matched controls. Assessment of depressive symptoms was performed using the Beck Depression Inventory, a validated instrument for quantifying depression severity. As the data did not meet normality assumptions, non-parametric methods were applied for statistical analysis.

Crohn's disease patients demonstrated significantly higher depression scores compared to controls (Beck Depression Inventory: 15.55±9.99 vs. 5.76±4.18; p<0.001). The prevalence of depression (Beck Depression Inventory ≥10) was 32.1% in the Crohn's disease group versus 9.5% in the control group. Notably, severe depression was observed exclusively among Crohn's disease patients, highlighting the substantial psychological burden associated with the disease.

These results highlight the significant psychological burden associated with Crohn's disease, with patients experiencing higher rates and greater severity of depression compared to healthy individuals.