RT Journal Article T1 Cumulative Burden of Colorectal Cancer-Associated Genetic Variants Is More Strongly Associated With Early-Onset vs Late-Onset Cancer. A1 Archambault, Alexi N A1 Su, Yu-Ru A1 Jeon, Jihyoun A1 Thomas, Minta A1 Lin, Yi A1 Conti, David V A1 Win, Aung Ko A1 Sakoda, Lori C A1 Lansdorp-Vogelaar, Iris A1 Peterse, Elisabeth F P A1 Zauber, Ann G A1 Duggan, David A1 Holowatyj, Andreana N A1 Huyghe, Jeroen R A1 Brenner, Hermann A1 Cotterchio, Michelle A1 Bézieau, Stéphane A1 Schmit, Stephanie L A1 Edlund, Christopher K A1 Southey, Melissa C A1 MacInnis, Robert J A1 Campbell, Peter T A1 Chang-Claude, Jenny A1 Slattery, Martha L A1 Chan, Andrew T A1 Joshi, Amit D A1 Song, Mingyang A1 Cao, Yin A1 Woods, Michael O A1 White, Emily A1 Weinstein, Stephanie J A1 Ulrich, Cornelia M A1 Hoffmeister, Michael A1 Bien, Stephanie A A1 Harrison, Tabitha A A1 Hampe, Jochen A1 Li, Christopher I A1 Schafmayer, Clemens A1 Offit, Kenneth A1 Pharoah, Paul D A1 Moreno, Victor A1 Lindblom, Annika A1 Wolk, Alicja A1 Wu, Anna H A1 Li, Li A1 Gunter, Marc J A1 Gsur, Andrea A1 Keku, Temitope O A1 Pearlman, Rachel A1 Bishop, D Timothy A1 Castellví-Bel, Sergi A1 Moreira, Leticia A1 Vodicka, Pavel A1 Kampman, Ellen A1 Giles, Graham G A1 Albanes, Demetrius A1 Baron, John A A1 Berndt, Sonja I A1 Brezina, Stefanie A1 Buch, Stephan A1 Buchanan, Daniel D A1 Trichopoulou, Antonia A1 Severi, Gianluca A1 Chirlaque, María-Dolores A1 Sanchez-Perez, Maria-Jose A1 Palli, Domenico A1 Kühn, Tilman A1 Murphy, Neil A1 Cross, Amanda J A1 Burnett-Hartman, Andrea N A1 Chanock, Stephen J A1 de la Chapelle, Albert A1 Easton, Douglas F A1 Elliott, Faye A1 English, Dallas R A1 Feskens, Edith J M A1 FitzGerald, Liesel M A1 Goodman, Phyllis J A1 Hopper, John L A1 Hudson, Thomas J A1 Hunter, David J A1 Jacobs, Eric J A1 Joshu, Corinne E A1 Küry, Sébastien A1 Markowitz, Sanford D A1 Milne, Roger L A1 Platz, Elizabeth A A1 Rennert, Gad A1 Rennert, Hedy S A1 Schumacher, Fredrick R A1 Sandler, Robert S A1 Seminara, Daniela A1 Tangen, Catherine M A1 Thibodeau, Stephen N A1 Toland, Amanda E A1 van Duijnhoven, Franzel J B A1 Visvanathan, Kala A1 Vodickova, Ludmila A1 Potter, John D A1 Männistö, Satu A1 Weigl, Korbinian A1 Figueiredo, Jane A1 Martín, Vicente A1 Larsson, Susanna C A1 Parfrey, Patrick S A1 Huang, Wen-Yi A1 Lenz, Heinz-Josef A1 Castelao, Jose E A1 Gago-Dominguez, Manuela A1 Muñoz-Garzón, Victor A1 Mancao, Christoph A1 Haiman, Christopher A A1 Wilkens, Lynne R A1 Siegel, Erin A1 Barry, Elizabeth A1 Younghusband, Ban A1 Van Guelpen, Bethany A1 Harlid, Sophia A1 Zeleniuch-Jacquotte, Anne A1 Liang, Peter S A1 Du, Mengmeng A1 Casey, Graham A1 Lindor, Noralane M A1 Le Marchand, Loic A1 Gallinger, Steven J A1 Jenkins, Mark A A1 Newcomb, Polly A A1 Gruber, Stephen B A1 Schoen, Robert E A1 Hampel, Heather A1 Corley, Douglas A A1 Hsu, Li A1 Peters, Ulrike A1 Hayes, Richard B K1 Colon Cancer K1 EOCRC K1 Penetrance K1 SNP AB Early-onset colorectal cancer (CRC, in persons younger than 50 years old) is increasing in incidence; yet, in the absence of a family history of CRC, this population lacks harmonized recommendations for prevention. We aimed to determine whether a polygenic risk score (PRS) developed from 95 CRC-associated common genetic risk variants was associated with risk for early-onset CRC. We studied risk for CRC associated with a weighted PRS in 12,197 participants younger than 50 years old vs 95,865 participants 50 years or older. PRS was calculated based on single nucleotide polymorphisms associated with CRC in a large-scale genome-wide association study as of January 2019. Participants were pooled from 3 large consortia that provided clinical and genotyping data: the Colon Cancer Family Registry, the Colorectal Transdisciplinary Study, and the Genetics and Epidemiology of Colorectal Cancer Consortium and were all of genetically defined European descent. Findings were replicated in an independent cohort of 72,573 participants. Overall associations with CRC per standard deviation of PRS were significant for early-onset cancer, and were stronger compared with late-onset cancer (P for interaction = .01); when we compared the highest PRS quartile with the lowest, risk increased 3.7-fold for early-onset CRC (95% CI 3.28-4.24) vs 2.9-fold for late-onset CRC (95% CI 2.80-3.04). This association was strongest for participants without a first-degree family history of CRC (P for interaction = 5.61 × 10-5). When we compared the highest with the lowest quartiles in this group, risk increased 4.3-fold for early-onset CRC (95% CI 3.61-5.01) vs 2.9-fold for late-onset CRC (95% CI 2.70-3.00). Sensitivity analyses were consistent with these findings. In an analysis of associations with CRC per standard deviation of PRS, we found the cumulative burden of CRC-associated common genetic variants to associate with early-onset cancer, and to be more strongly associated with early-onset than late-onset cancer, particularly in the absence of CRC family history. Analyses of PRS, along with environmental and lifestyle risk factors, might identify younger individuals who would benefit from preventive measures. YR 2019 FD 2019-12-19 LK http://hdl.handle.net/10668/14866 UL http://hdl.handle.net/10668/14866 LA en DS RISalud RD Apr 5, 2025