Fig. 2

The cumulative diabetes free probability by Kaplan–Meier survival curves in women (A), men (B) and overall (C). FPG changes was defined as the difference between the baseline and final visit FPG (FPG2) (mmol/L). FPG changes was categorized into three stages based on the curves: stage-1: women < -0.24, men < -0.05 and overall < -0.04 mmol/L; stage-2: women -0.24—1.15, men -0.05—1.31 and overall -0.04—1.24 mmol/L; stage-3: women ≥ 1.16, men ≥ 1.32 and overall ≥ 1.25 mmol/L