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The metabolic syndrome and risk of incident colorectal cancer
Article first published online: 23 MAY 2006
Copyright © 2006 American Cancer Society
Volume 107, Issue 1, pages 28–36, 1 July 2006
How to Cite
Ahmed, R. L., Schmitz, K. H., Anderson, K. E., Rosamond, W. D. and Folsom, A. R. (2006), The metabolic syndrome and risk of incident colorectal cancer. Cancer, 107: 28–36. doi: 10.1002/cncr.21950
- Issue published online: 16 JUN 2006
- Article first published online: 23 MAY 2006
- Manuscript Accepted: 14 FEB 2006
- Manuscript Revised: 23 JAN 2006
- Manuscript Received: 31 OCT 2005
- National Heart, Lung, and Blood Institute. Grant Numbers: N01-HC-55015, 55016, 55018, 55019, 55020, 55021, 55022
- National Cancer Institute. Grant Number: R03-CA65473
- National Institutes of Health. Grant Numbers: T32 GM08244-15, T32 CA09607-15
- University of Minnesota Thomas Shevlin predoctoral fellowship
- colon cancer;
- rectal cancer;
- metabolic syndrome;
- prospective study
The authors tested the hypothesis that the metabolic syndrome (≥3 of the following components: high blood pressure, increased waist circumference, hypertriglyceridemia, low levels of high-density lipoprotein cholesterol, or diabetes/hyperglycemia) is a risk factor for colorectal cancer.
Data from the Atherosclerosis Risk in Communities (ARIC) multicenter prospective cohort study were used. Metabolic syndrome components and other risk factors were collected during 1987 to 1989 from the 14,109 men and women in these analyses. One hundred ninety-four incident colorectal cancers were identified through the Year 2000. Multivariate Cox proportional hazards regression analyses were used to examine associations.
Baseline metabolic syndrome (≥3 components vs. 0 components) had a positive association with age-adjusted and gender-adjusted colorectal cancer incidence (relative risk [RR], 1.49; 95% confidence interval [95%CI], 1.0-2.4); this association was attenuated after multivariate adjustment (RR, 1.39; 95%CI, 0.9-2.2). There was a dose-response association between colorectal cancer incidence and the number of metabolic syndrome components present at baseline (P for trend = .006) after multivariate adjustment. Analysis of gender revealed that the multivariate-adjusted association of metabolic syndrome with colorectal cancer was stronger in men (RR, 1.78; 95%CI, 1.0-3.6) and weaker in women (RR, 1.16; 95%CI, 0.6-2.2).
In this population-based cohort, metabolic syndrome was a risk factor for incident colorectal cancer in men but not women. Evidence is growing that the metabolic syndrome may be a marker for a physiologic milieu of growth that encourages tumor initiation, promotion, and/or progression. Cancer 2006. © 2006 American Cancer Society.