Efficacy, and Cost-effectiveness of an Online ACT Intervention for Disorders of Gut-Brain Interaction (iACTforDGBI)

Efficacy, and Cost-effectiveness of an Online ACT Intervention for Disorders of Gut-Brain Interaction (iACTforDGBI)

Test of efficacy and cost-effectiveness of the iACTforDGBI intervention vs an active control group (DGBI School)

Inclusion Criteria:

• Age between 18 and 75 years
• Meeting clinical symptom levels for least one DGBI diagnosis (assessed with the Rome IV Diagnostic Questionnaire for Functional Gastrointestinal Disorders in Adults (Palsson et al., 2016))
• Clinically meaningful levels of depressive symptoms or anxiety: score ≥ 7 and ≤ 34 on the Montgomery Åsberg Depression Rating Scale (Svanborg & Åsberg, 1994; (MADRS-S; depressive symptoms), or score ≥ 5 on the Generalized Anxiety Disorder scale-7 (GAD-7; anxiety symptoms; Spitzer et al., 2006)
• Stable medication for psychiatric symptoms including anxiety, depression and sleep problems for at least two months prior to intervention.
• Ability to read and write Swedish
• Have access to a device (like computer, tablet or smartphone with) with access to the internet and that can be used to attend video conferences and preview the intervention platform (i.e., have a microphone and speakers or headphones).

Exclusion Criteria:

• Currently undergoing any form of psychological intervention.
• Increased risk of suicide (≥4 points on MADRS item 9).
• Ongoing or previously diagnosed severe psychiatric disorder, such as schizophrenia spectrum disorders or bipolar disorder.