This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by Lackner, J. M. Articles by Blanchard, E. B. Search for Related Content PubMed PubMed Citation Articles by Lackner, J. M. Articles by Blanchard, E. B. Related Collections Gastrointestinal Pain Depression

Depression and Abdominal Pain in IBS Patients: The Mediating Role of Catastrophizing

From the Department of Medicine (J.M.L.), University at Buffalo School of Medicine and Biomedical Sciences, State University of New York, Buffalo, NY; Research Institute on the Addictions (B.M.Q.), University at Buffalo, SUNY Buffalo; and Department of Psychology (E.B.B.), University at Albany, State University of New York, Albany, NY.

Address correspondence and reprint requests to Jeffrey M. Lackner, PsyD, Behavioral Medicine Clinic, Department of Medicine, UB School of Medicine, SUNY, ECMC, 462 Grider Street, Buffalo, NY, 14215. E-mail: lackner{at}buffalo.edu

OBJECTIVE: Depression has been linked to irritable bowel syndrome (IBS), but the mechanism underlying this relationship is unknown. This cross-sectional study explores the possibility that negatively skewed beliefs patients hold regarding abdominal pain (ie, catastrophizing) mediate the relationship between depression and pain severity.

METHODS: The sample included 244 consecutively evaluated individuals who met Rome II diagnosis for IBS without comorbid gastrointestinal disease and completed measures of pain severity, trait anxiety, catastrophizing, maladaptive beliefs, and depression as part of baseline assessment of an National Institutes of Health–funded randomized controlled trial of 2 nondrug treatments.

RESULTS: Using a mediational model involving a series of linear regressions, results indicated that pain catastrophizing partially mediated the link between depression and abdominal pain severity. Depression, catastrophizing, and control variables accounted for 21% of the variance in pain severity. The finding that patients with IBS with greater depression reported greater pain severity can be partially explained by their tendency to engage in more catastrophic thinking specific to pain.

CONCLUSIONS: The relation between depression and pain is not, as psychogenic models predict, strictly a direct and linear one but works partly through patients’ beliefs regarding their pain in general and pain catastrophizing in specific. Implications of the findings for understanding and investigating the depression–IBS link from a biopsychosocial perspective are discussed.

Key Words: irritable bowel syndrome, • depression, • cognition, • visceral pain, • catastrophizing, • chronic pain.

Abbreviations: IBS = irritable bowel syndrome;; BP = Bodily Pain;; BDI = Beck Depression Inventory;; CBT = cognitive behavioral therapy;; DAS = Dysfunctional Attitudes Scale;; DSM = Diagnostic and Statistical Manual for Mental Disorders;; SF-36 = Short Form-36 Health Survey;; STAI = State-Trait Anxiety Inventory.

This article has been cited by other articles:

				B. D. Naliboff, M. P. Frese, and L. Rapgay Mind/Body Psychological Treatments for Irritable Bowel Syndrome Evid. Based Complement. Altern. Med., March 1, 2008; 5(1): 41 - 50. [Abstract] [Full Text] [PDF]

				R Spiller, Q Aziz, F Creed, A Emmanuel, L Houghton, P Hungin, R Jones, D Kumar, G Rubin, N Trudgill, et al. Guidelines on the irritable bowel syndrome: mechanisms and practical management Gut, December 1, 2007; 56(12): 1770 - 1798. [Abstract] [Full Text] [PDF]

				E. L. Garland The Meaning of Mindfulness: A Second-Order Cybernetics of Stress, Metacognition, and Coping Complementary Health Practice Review, January 1, 2007; 12(1): 15 - 30. [Abstract] [PDF]