Fig. 1. Geographical variations in male heart deaths and prevalence of diabetes in the United States. A. Male heart deaths for those over 35 years, 1991–1995, in tertiles by states: lowest, 492–626; middle, 627–715; and highest, 722–878/100,000. B. Prevalence of diabetes in 1998, in tertiles by states: lowest, 2.8–4.4; middle, 4.5–5.7; highest, 5.8–7.8%. The lowest tertiles are white, the middle tertiles are light grey, and the highest tertiles are dark grey.