Association between leukocyte genomic DNA methylation level and colorectal cancer risk in the nested case-control study.

Multivariate ORs are adjusted for race, height (continuous), pack-years of smoking (continuous), body mass index (continuous), physical activity (in quartiles), family history of colorectal cancer (yes or no), history of colonoscopy or sigmoidoscopy (yes or no), alcohol intake (continuous), intake of red and processed meat (in quartiles), vitamin D intake (continuous), calcium intake (continuous), and aspirin use (non-users vs. ever users).