Table 4.

External validation receiver operating characteristic analysis

			AUC (95% CI)	Sens. (95% CI)	Spec. (95% CI)	Accuracy (95% CI)
PWV < 6.7 m/s	Ridge	Basic	0.89 (0.84–0.95)	0.95 (0.82–0.99)	0.84 (0.74–0.92)	0.88 (0.80–0.93)
Versus ≥ 6.7 m/s		Expanded	0.81 (0.73–0.90)	0.73 (0.56–0.86)	0.90 (0.80–0.96)	0.84 (0.76–0.90)
	DNN	Basic	0.87 (0.80–0.93)	0.92 (0.78–0.98)	0.81 (0.70–0.90)	0.85 (0.77–0.91)
		Expanded	0.87 (0.80–0.94)	0.86 (0.71–0.95)	0.87 (0.77–0.94)	0.87 (0.79–0.93)

AUC Area under the receiver operating characteristic (ROC) curve, DNN deep neural network, PWV pulse wave velocity