Figure 1.

Association of treatment allocation with risk of diabetes: impact of baseline levels and changes in β-cell function. ¹For IGI/IR models: model 1 adjusted for age and baseline IGI, HOMA-IR, fasting glucose, waist circumference, triglyceride, and HDL; model 2 adjusted for age and changes in IGI, HOMA-IR, fasting glucose, waist circumference, triglyceride, and HDL. ²For PI/C models: model 1 adjusted for age and baseline PI, C-peptide, fasting glucose, waist circumference, triglyceride, and HDL; model 2 adjusted for age and changes in PI, C-peptide, fasting glucose, waist circumference, triglyceride, and HDL.