RT Journal Article T1 Low adherence to the western and high adherence to the mediterranean dietary patterns could prevent colorectal cancer. A1 Castelló, Adela A1 Amiano, Pilar A1 Fernández de Larrea, Nerea A1 Martín, Vicente A1 Alonso, Maria Henar A1 Castaño-Vinyals, Gemma A1 Pérez-Gómez, Beatriz A1 Olmedo-Requena, Rocío A1 Guevara, Marcela A1 Fernandez-Tardon, Guillermo A1 Dierssen-Sotos, Trinidad A1 Llorens-Ivorra, Cristobal A1 Huerta, Jose María A1 Capelo, Rocío A1 Fernández-Villa, Tania A1 Díez-Villanueva, Anna A1 Urtiaga, Carmen A1 Castilla, Jesús A1 Jiménez-Moleón, Jose Juan A1 Moreno, Víctor A1 Dávila-Batista, Verónica A1 Kogevinas, Manolis A1 Aragonés, Nuria A1 Pollán, Marina A1 MCC-Spain researchers, K1 Colonic neoplasms K1 Diet K1 Diet, Mediterranean K1 Diet, Western K1 Dietary patterns K1 Prevention and control K1 Principal component analysis K1 Rectal neoplasms AB To assess if the associations found between three previously identified dietary patterns with breast, prostate and gastric cancer are also observed for colorectal cancer (CRC). MCC-Spain is a multicase-control study that collected information of 1629 incident cases of CRC and 3509 population-based controls from 11 Spanish provinces. Western, Prudent and Mediterranean data-driven dietary patterns-derived in another Spanish case-control study-were reconstructed in MCC-Spain. Their association with CRC was assessed using mixed multivariable logistic regression models considering a possible interaction with sex. Risk by tumor site (proximal colon, distal colon, and rectum) was evaluated using multinomial regression models. While no effect of the Prudent pattern on CRC risk was observed, a high adherence to the Western dietary pattern was associated with increased CRC risk for both males [ORfourth(Q4) vs. first(Q1)quartile (95% CI): 1.45 (1.11;1.91)] and females [ORQ4 vs. Q1 (95% CI): 1.50 (1.07;2.09)] but seem to be confined to distal colon [ORfourth(Q4) vs. first(Q1)quartile (95% CI): 2.02 (1.44;2.84)] and rectal [ORQ4 vs. Q1 (95% CI): 1.46 (1.05;2.01)] tumors. The protective effect of the Mediterranean dietary pattern against CRC was observed for both sexes [males: ORQ4 vs. Q1 (95% CI): 0.71 (0.55;0.92); females: ORQ4 vs. Q1 (95% CI): 0.56 (0.40;0.77)] and for all cancer sites: proximal colon [ORQ4 vs. Q1 (95% CI): 0.70 (0.51;0.97)], distal colon [ORQ4 vs. Q1 (95% CI): 0.65 (0.48;0.89)], and rectum (ORQ4 vs. Q1 (95% CI): 0.60 (0.45;0.81)]. Our results are consistent with most of the associations previously found between these patterns and breast, prostate and gastric cancer risk and indicate that consuming whole fruits, vegetables, legumes, olive oil, nuts, and fish and avoiding red and processed meat, refined grains, sweets, caloric drinks, juices, convenience food, and sauces might reduce CRC risk. YR 2018 FD 2018-03-26 LK http://hdl.handle.net/10668/12279 UL http://hdl.handle.net/10668/12279 LA en DS RISalud RD Apr 11, 2025