Quality of Life and Bidirectional Gut-Brain Interactions in Irritable Bowel Syndrome From Adolescence to Adulthood

BACKGROUNDS AND AIMS: Reports on cross-sectional and longitudinal associations between health-related quality of life (HRQoL), psychological distress, and irritable bowel syndrome (IBS) in the adolescent and young adult general population are few. We aimed to describe cross-sectional associations between HRQoL and IBS in adolescence and young adulthood, and examine bidirectional gutbrain interactions in the transition from childhood to adulthood.<br /> METHODS: We included 3391 subjects from a prospective birth cohort study, with data on IBS at 16 years of age and 24 years of age. IBS was assessed using the pediatric Rome III (16 years of age) and the adult Rome IV (24 years of age) diagnostic questionnaires. HRQoL and psychological distress were assessed through EQ-5D. Sex-adjusted logistic regression models were used to examine associations between overall HRQoL/psychological distress at 16 years of age and new-onset IBS at 24 years of age (brain-gut) and between IBS at 16 years of age and new-onset psychological distress at 24 years of age (gut-brain).<br /> RESULTS: In subjects with vs without IBS at 16 and 24 years of age, overall HRQoL (EQ visual analog scale, EQ-5D index value) was lower, and it was more common reporting problems in 4 of 5 EQ-5D dimensions (all P < .05). EQ-5D index value at 16 years of age was inversely associated (odds ratio [OR], 0.1, 95% con fi dence interval [CI], 0.01 - 0.6), and psychological distress at 16 years of age was positively associated (OR, 1.6; 95% CI, 1.2 - 2.3), with new-onset IBS at 24 years of age. Having any abdominal pain - related disorder of gut-brain interaction at 16 years of age was associated with new-onset psychological distress at 24 years of age (OR, 1.7; 95% CI, 1.2 - 2.5). CONCLUSIONS: Adolescents and young adults with IBS in the general population have impaired HRQoL. Bidirectional gut-brain interactions are relevant for symptom generation in abdominal pain - related disorders of gut-brain interaction, and for HRQoL impairment and psychological distress in the transition from childhood to adulthood.