FIGURE 2.

Cumulative incidence of type 2 diabetes by randomized antioxidant intervention. (A) Active vitamin C compared with placebo; (B) active vitamin E compared with placebo; and (C) active β-carotene compared with placebo in the Women's Antioxidant Cardiovascular Study. Kaplan-Meier survival curves were used to estimate the overall cumulative incidence over time for each active vitamin group and its corresponding placebo group. The log-rank test was performed to compute the P values for the differences.