In the illustrations that accompany this Harvard study it says that the study was «adjusted for age; race; body - mass index; level of physical activity; status with regard to smoking, whether a physical examination was
performed for
screening purposes, current multivitamin use, and current aspirin use; status with regard to a family history of diabetes mellitus, myocardial infarction, or cancer; status with regard to a history of diabetes mellitus, hypertension, or hypercholesterolemia; intake of total energy,
alcohol, RED OR PROCESSED MEAT, fruits, and vegetables; and, for women, menopausal status and hormone use.»