%0 Journal Article %A Ibañez-Sanz, Gemma %A Diez-Villanueva, Anna %A Alonso, M Henar %A Rodriguez-Moranta, Francisco %A Perez-Gomez, Beatriz %A Bustamante, Mariona %A Martin, Vicente %A Llorca, Javier %A Amiano, Pilar %A Ardanaz, Eva %A Tardon, Adonina %A Jimenez-Moleon, Jose J %A Peiro, Rosana %A Alguacil, Juan %A Navarro, Carmen %A Guino, Elisabet %A Binefa, Gemma %A Fernandez-Navarro, Pablo %A Espinosa, Anna %A Davila-Batista, Veronica %A Molina, Antonio Jose %A Palazuelos, Camilo %A Castaño-Vinyals, Gemma %A Aragones, Nuria %A Kogevinas, Manolis %A Pollan, Marina %A Moreno, Victor %T Risk Model for Colorectal Cancer in Spanish Population Using Environmental and Genetic Factors: Results from the MCC-Spain study. %D 2017 %U http://hdl.handle.net/10668/10901 %X Colorectal cancer (CRC) screening of the average risk population is only indicated according to age. We aim to elaborate a model to stratify the risk of CRC by incorporating environmental data and single nucleotide polymorphisms (SNP). The MCC-Spain case-control study included 1336 CRC cases and 2744 controls. Subjects were interviewed on lifestyle factors, family and medical history. Twenty-one CRC susceptibility SNPs were genotyped. The environmental risk model, which included alcohol consumption, obesity, physical activity, red meat and vegetable consumption, and nonsteroidal anti-inflammatory drug use, contributed to CRC with an average per factor OR of 1.36 (95% CI 1.27 to 1.45). Family history of CRC contributed an OR of 2.25 (95% CI 1.87 to 2.72), and each additional SNP contributed an OR of 1.07 (95% CI 1.04 to 1.10). The risk of subjects with more than 25 risk alleles (5th quintile) was 82% higher (OR 1.82, 95% CI 1.11 to 2.98) than subjects with less than 19 alleles (1st quintile). This risk model, with an AUROC curve of 0.63 (95% CI 0.60 to 0.66), could be useful to stratify individuals. Environmental factors had more weight than the genetic score, which should be considered to encourage patients to achieve a healthier lifestyle. %K Population screening %K Colorectal cancer %~