Table 8.

The result of the two-piecewise Cox regression model and linear regression model

	Renal composite endpoint (HR, 95%CI, P )
Fitting model by two-piecewise Cox regression
Inflection point of ALB	4.3 g/dL
≤ 4.3 g/dL	0.42 (0.32, 0.56)	< 0.001
> 4.3 g/dL	6.11 (0.98, 38.22)	0.05
P for log-likelihood ratio test	< 0.05
	Renal function decline (β, 95%CI, P)
Fitting model by two-piecewise linear regression
Inflection point of ALB	4.1 g/dL
≤ 4.1 g/dL	-2.79 (-3.62, -1.96)	< 0.001
> 4.1 g/dL	0.02 (-1.79, 1.84)	0.98
P for log-likelihood ratio test	< 0.05

We adjusted age, BMI, gender, SBP, diabetes, hypertension, history of CVD, eGFR, UPCR, ALB, use of RAAS inhibitor, urinary occult blood, use of calcium channel blocker, and use of diuretics

HR Hazard ratios, CI Confidence interval