Table 5.

The result of two-piecewise linear regression model

	Incident diabetes (HR, 95% CI, P value)
Fitting model by standard linear regression	1.015 (1.012 to 1.018)<0.001
Fitting model by two-piecewise linear regression
Inflection point of MAP (mm Hg)	100.333
≤100.333	1.022 (1.017 to 1.027)<0.001
>100.333	1.005 (0.998 to 1.012) 0.163
P for log likelihood ratio test	<0.001

We adjusted age, gender, BMI, TC, TG, HDL-C, LDL-C, ALT, AST, Scr, family history of diabetes, smoking and drinking status.

ALT, alanine aminotransferase; AST, aspartate aminotransferase; BMI, body mass index; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipid cholesterol; MAP, mean arterial pressure; Scr, serum creatinine; TC, total cholesterol; TG, triglyceride.