Table 5.

Results of the two-piecewise Cox regression model

Reversion to normoglycemia	HR(95%CI)	P value
Fitting model by standard Cox regression	0.73 (0.71, 0.75)	< 0.001
Fitting model by two-piecewise cox regression
Inflection point of RC (mg/dL)	41.38
< 41.38 mg/dL (per SD increase)	0.66 (0.63, 0.68)	< 0.001
≥ 41.38 mg/dL(per SD increase)	0.93 (0.87, 0.99)	0.031

Abbreviations HR, hazard ratio; CI, confidence interval

Adjusted for age, sex, family history of diabetes, smoking status, drinking status, SBP, DBP, BMI, FPG, TG, ALT, AST, HDL-C, LDL-C, BUN, and Cr