The blood-based seven-gene

biomarker panel test benefits patients who wish to have information about their CRC risk status prior to considering current screening procedures. (Such patients may be uncomfortable with current screening procedures due to fear click here of health risks, discomfort, cultural, personal or other reasons) The blood-based test employs receiver operator characteristic (ROC) curve analysis of the expression of six genes of interest relative to a reference gene. Continuous biomarker outputs are estimated; thus a threshold can be set to achieve a combination of sensitivity and specificity that best fits the intended use of the test. By contrast, current CRC tests such as gFOBT, FIT, fecal DNA test, are discrete, yielding yes-or-no information. On the basis of the biomarker test, patients can PI3K inhibitor be stratified by their current risk of CRC. Our calculations showed that by using our test it is possible to stratify the average risk population and select those patients with an elevated risk for CRC of 2 times or higher, such that 51% of the cancers can be found by performing

colonoscopy on only 12% of the population. This is equivalent to a four-fold increase in detection rates, and can substantially increase healthcare efficiency and the use of scarce resources such as colonoscopy [6]. Conclusion In this study, we independently confirm that a seven-gene biomarker panel validated in a North American population is also applicable for current CRC risk stratification in a Malaysian population. The extension of the North American findings lends considerable

independent validity to the blood-based CRC test, supporting the clinically utility of the risk stratification approach across different ethnicities. References 1. World Gastroenterology Organization/International Digestive Cancer Alliance: Practice Guidelines: Colorectal Cancer Screening. World Gastroenterology Organization; 2007. 2. National Cancer Registry: Malaysia Cancer Statistics: Adenosine Data and Figures Peninsular Malaysia. Kuala Lumpur: Ministry of Health Malaysia; 2006. 3. US Department of Health and Human Services Centers for Disease Control and Prevention: Colorectal cancer test use among persons aged greater than or equal to 50 years — United States, 2001. MMWR 2003, 52:193–196. 4. Zarychanski R, Chen Y, Bernstein CN, Hebert PC: Frequency of colorectal screening and the impact of family physicians on screening behaviour. CMAJ 2007, 177:593–597.PubMed 5. Sewich MJ, Fournier C, Ciampi A, Dyachanko A: Adherence to colorectal cancer screening guidelines in Canada. BMC Gastroenterology 2007, 7:39.CrossRef 6. Marshall KW, Mohr S, El Khettabi F, Nossova N, Chao S, Bao W, Ma J, Li XJ, Liew CC: Blood-based Biomarker Panel for Stratifying Current Risk for Colorectal Cancer. Int J Cancer 2010, 126:1177–1186.PubMed 7. von Knebel Doeberitz M: Editorial. Int J Cancer 2010, 126:1037–1038.PubMedCrossRef 8.