Dietary patterns as identified by factor analysis and colorectal cancer among middle-aged Americans
Background: Although diet has long been suspected as an etiological factor for colorectal cancer, studies of single foods and nutrients have provided inconsistent results. Objective: We used factor analysis methods to study associations between dietary patterns and colorectal cancer in middle-aged Americans. Design: Diet was assessed among 293 615 men and 198 767 women in the National Institutes o
