Embracing complexity: what determines quality of life in inflammatory bowel disease?

A subset of patients with inflammatory bowel disease have markedly impaired quality of life. In this issue, Mussell et al. report that patients' self-rated health status and disease-related concerns were determined at least as strongly by their habitual use of depressive coping patterns as by their disease activity. Although past disease severity may have confounded these results, the finding that quality of life is better for patients armed with a positive approach to problem-handling suggests that psychologically oriented interventions could have far-reaching benefits for selected patients. Since evidence is accumulating that stress and distress can worsen tissue inflammation and clinical course in animal models and in clinical populations with inflammatory bowel disease, we may dare to hope that interventions aimed at improving patients' stress tolerance, depressive symptoms, and coping capacities might not only improve perceived quality of life but could potentially decrease bowel inflammation and reduce some patients' need for toxic medications or surgery. Designing, applying, and evaluating such interventions should be a major item on the agenda of psychosomatic medicine in gastroenterology, and biological reductionism should be replaced by the biopsychosocial model.