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The Incidence of Self-prescribed Oral Complementary and Alternative Medicine Use by Patients With Gastrointestinal Diseases

Kong, San Choon MRCP*; Hurlstone, David P MRCP, MD*; Pocock, Charlotte Y MB, ChB*; Walkington, Lucy A MB, ChB*; Farquharson, Nina R MB, ChB*; Bramble, Michael G MD, FRCP; McAlindon, Mark E MD, FRCP*; Sanders, David S MRCP, MD, FACG*

Journal of Clinical Gastroenterology: February 2005 - Volume 39 - Issue 2 - p 138-141
doi: 10.1097/01.mcg.0000150177.73706.8c
Alimentary Tract: Clinical Research

Goals: To assess the incidence of oral complementary and alternative medicine (CAM) usage by gastroenterology patients at a single university center and compare against controls.

Background: The public awareness and usage of CAM have increased. The use of CAM has been described in patients with functional bowel disorders; however, their role in patients with gastrointestinal disease is less clear.

Study: Patients attending luminal gastroenterology clinics and customers at local supermarkets completed a 30-point, structured questionnaire assessing their use of CAM.

Results: A total of 1,409 subjects were recruited. The incidence of CAM use was 49.5% for inflammatory bowel disease, 50.9% for irritable bowel syndrome, 20% for general gastrointestinal diseases, and 27% for controls. Pearson's χ2 tests showed that patients with inflammatory bowel disease (IBD) or irritable bowel syndrome were more likely to use CAM than controls (P < 0.001). Binary logistic regression analysis showed that females were more likely to take CAM than men (P < 0.05).

Conclusions: The percentage of CAM users among patients with IBD is similar to those with a functional diagnosis. Increasing numbers of IBD patients are using CAM in addition to conventional therapy. Awareness of this may prevent adverse CAM and conventional drug interactions.

From the *Department of Gastroenterology, Royal Hallamshire Hospital, Sheffield, United Kingdom; and †Department of Gastroenterology, James Cook University Hospital, Middlesbrough, United Kingdom.

Received for publication February 18, 2004; accepted June 21, 2004.

Reprints: David S. Sanders, MD, Room P39, P Floor, Royal Hallamshire Hospital, Glossop Road, Sheffield, S10 2JF United Kingdom (e-mail:

© 2005 Lippincott Williams & Wilkins, Inc.