Randomised clinical trial: individual versus group hypnotherapy for irritable bowel syndrome.

"Declaration of personal interests: None. Declaration of funding interests: None."

"Funding information This study was funded by the Healthcare Committee, Region Västra Götaland (grants VGFOUREG 855971 and VGFOUREG 930214), the Swedish Research Council (grant 2018–02566), the ALF‐agreement (grants ALFGBG‐726561 and 875,581) and the Faculty of Medicine, University of Gothenburg."

"Patients with IBS according to the Rome III criteria, with bowel symptoms that had been refractory to usual medical treatment, were consecutively recruited to the study at a gastroenterology outpatient clinic at Sahlgrenska University Hospital, Gothenburg, Sweden. The study participants were included by the two gastroenterologists in the study (MS and HT) from 2011 to 2015. They confirmed the IBS diagnosis based on detailed clinical history and appropriate tests as needed, and study eligibility was assessed based on inclusion and exclusion criteria (Table ). Before the treatment started, patients met the nurse responsible for the hypnotherapy treatment (JL), receiving further verbal and written information about hypnotherapy and the study procedure. Patients were instructed not to test other treatments (medical or other) for their IBS symptoms during the study period. Written informed consent was obtained from all study participants prior to treatment. The study was approved by the Regional Ethical Review Board in Gothenburg (no 686–11), and registered at ClinicalTrials.gov (ID no: NCT03432078)."