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Abstract
Complementary and alternative medicine (CAM) represents a wide range of treatment modalities. CAM products may interact with enzymes, transport proteins, and may therefore influence drug metabolism. The prevalence and patterns of CAM usage among patients with head and neck carcinoma (HNC) are largely unknown. This cross-sectional study was designed to document pattern of CAM consumption in patients with HNC. Statistical differences in a significantly higher prevalence of CAM consumption between tumor patients (n = 107) and the control group (n = 112) could be detected. Concerning the frequency of CAM usage, we could document a significant increased consumption of CAM among tumor patients (42.8% vs. 62.6%) especially for herbal teas (P < 0.05), phytotherapy (P < 0.001), supplement products (P < 0.05), and “other” supplements (P < 0.005) comparing the controls. Furthermore a significant influence of female gender and an increased CAM usage could be illustrated. Concerning the knowledge of potential interactions of CAM consumption, only 6.25% of the controls and 19.6% of tumor patients know about possible side effects but only 1.7% of the controls and 6.5% of the tumor patients informed their physician about the CAM usage. The frequency of CAM in head and neck tumor patients seems to be relevant in the supervision of anticancer therapies.
ACKNOWLEDGMENTS
The authors would like to thank Ms. Petra Prohaska for her excellent technical assistance and Mr. Martin Stegmueller for his great assistance in statistical analysis. Furthermore, we would like to thank Dr. Rainer Nowack for providing the original questionnaire. This study has been funded by the Faculty of Medicine Mannheim, University of Heidelberg, Germany.