Related Experiment Video
Updated: Mar 19, 2026

Investigating Alterations in Caecum Microbiota After Traumatic Brain Injury in Mice
Published on: September 19, 2019
Effects of Earthquake Fear and Post-Traumatic Stress Disorder on Patients with Irritable Bowel Syndrome after a Major
Rasim Eren Cankurtaran1, Hulusi Can Karpuzcu1, Engin Ataman2
1Department of Gastroenterology, Ankara Etlik City Hospital, Ankara, Türkiye.
Background/Aims:
On February 6, 2023, 2 devastating earthquakes struck south-eastern Türkiye, causing over 100 000 injuries and more than 50 000 deaths. This study aimed to investigate the impact of post-traumatic stress disorder (PTSD) and fear of earthquake on the severity of irritable bowel syndrome (IBS) symptoms and IBS-related quality of life (IBS-QoL).
Materials And Methods:
Participants diagnosed with IBS were categorized into 2 groups: those residing in earthquake zones and those in non-earthquake zones. Data regarding demographic characteristics, IBS Symptom Severity Scale (IBS-SSS), IBS-QoL, Post-traumatic Stress Disorder Checklist for Diagnostic and Statistical Manual of Mental Disorders-5th edition (PCL-5), and Fear of Earthquake Scale (FES) were collected through validated questionnaires. Multivariate analyses, multiple linear regression, and elastic net (EL) models were performed to identify predictors of IBS-SSS and IBS-QoL scores.
Results:
A total of 225 IBS patients were included, with 117 (52%) from earthquake zones and 108 (48%) from non-earthquake zones. Mean IBS-SSS, IBS-QoL, FES, and PCL-5 scores were significantly higher in the earthquake group compared to the non-earthquake group (249 vs. 141; 44.1 vs. 22.8; 20 vs. 9; 47 vs. 28, respectively; P < .001 for all). The PCL-5 and FES scores were independent predictors of IBS-SSS (OR = 1.057, P < .001 and OR = 1.082, P = .019). In regression and EL models, PCL-5 (P < .001) was the strongest predictor (100%) and FES (P = .006) the second (38%) for IBS-QoL.
Conclusion:
The PTSD and earthquake-related fear significantly impact IBS symptom severity and QoL. A holistic treatment approach addressing psychosomatic and mental health factors may improve outcomes in IBS patients. Cite this article as: Cankurtaran RE, Karpuzcu HC, Ataman E, et al. Effects of earthquake fear and post-traumatic stress disorder on patients with irritable bowel syndrome after a major earthquake in Türkiye: A multicenter study. Turk J Gastroenterol. 2026;37(3):387-396.
Related Concept Videos
Irritable Bowel Syndrome I: Introduction
IBS is a chronic condition that can persist over a long period or recur frequently.
The pathogenesis of IBS involves a complex interplay of the following factors:
Altered...
Irritable Bowel Syndrome II: Clinical Features and Diagnostic Evaluation
Irritable Bowel Syndrome (IBS) is classified into subtypes based on the predominant bowel habits as determined by the Bristol Stool Form Scale (BSFS). The subtypes are:
Post-traumatic Stress Disorder
Symptoms and Behavioral Manifestations
A spectrum of distressing symptoms characterizes PTSD. Recurrent flashbacks, where individuals involuntarily relive traumatic events,...
Irritable Bowel Syndrome III: Medical and Nursing Management
Drugs for Treatment of Diarrhea-Predominant IBS
Two specific drugs used in the treatment are alosetron (Lotronex) and eluxadoline (Viberzi). Alosetron, a 5-HT3 antagonist, works by slowing the movement of stools in the gut, reducing bowel...
Chronic Bowel Disorders: Introduction
Irritable Bowel Syndrome (IBS) is a common disorder affecting the gastrointestinal tract. The distinctive feature is recurrent abdominal pain associated with altered bowel movements, manifesting as constipation, diarrhea, or fluctuating between both. The...

