Fig. 1. Kaplan-Meier curves for the cumulative prevalence of type 2 diabetes mellitus for the quartile of homeostasis model assessment (HOMA) values. (A) In the normal glucose tolerance group. (B) In the pre-diabetic group. (C) In the non-diabetic group. In each figure, the 1Q group is displayed in gray, the 2Q group is displayed in blue, the 3Q group in black, and the highest quartile in red. IR, insulin resistance.