Fig. 5

Nonlinear relationship between eGFR and reversion to normoglycemia in patients with IFG. This figure features a Cox proportional hazards model with cubic spline functions that we utilized to examine the relationship between eGFR and the probability of reversion from IFG to normoglycemia. The results indicate a nonlinear correlation between eGFR and this probability, with an inflection point of 111.962 ml/min·1.73 m²