Table 5.

The AUC and Δ AUC of the ROC curves from different models and the comparisons.

	AUC	95% CI	P	ΔAUC	PΔ
Model 1	0.642	0.519–0.765	0.024
Model 2	0.714	0.599–0.830	0.001	0.072#	0.041
Model 3	0.735	0.625–0.846	0.000	0.093*	0.018
Model 4	0.748	0.638–0.858	0.000	0.106§	0.011

Model 1: age, diabetes, NT-proBNP and PCT; Model 2: Mode l +β1-AA; Model 3: Mode l + Log 2 sST2; Model 4: Mode l +β1-AA+ Log 2 sST2.

^# ΔAUC, Model 2-Model1;

^* ΔAUC, Model 3-Model1;

^§ΔAUC, Model 4-Model1.

AUC, the area under the curves. ΔAUC, the difference of two AUC. P, the significance of the probability for ROC curves of models for predicting the all-cause mortality of patients with ADHF. P^Δ, the significance of the probability for difference of ΔAUC. CI, confidence interval.