Serum folate levels and fatality among diabetic adults: A 15-y follow-up study of a national cohort.

Objective: Folate is involved in carbohydrate metabolism, a process that can have clinical implications regarding diabetes management. The aim of this study was to assess the relationship between serum folate and fatality among adults with diabetes.

Methods: A retrospective cohort study was conducted with 532 adults with diabetes who participated in Phase II of NHANES III (National Health and Nutrition Examination Survey III; 1991-1994).