Radial Pulse Wave Signals Combined with Ba-PWV for the Risk Prediction of Hypertension and the Monitoring of Its Accompanying Metabolic Risk Factors

Table 3

Comparison of models with/without radial artery pulse wave variables for the prediction of hypertension.

Model	AUC	95% CI	value	NRI events (%)	NRI nonevents (%)	NRI total (%)	value	IDI events (%)	IDI nonevents (%)	IDI total (%)	value
Baseline model	0.84	0.81–0.88	…	…	…	…	…	…	…	…	…
New model	0.86	0.83–0.89	0.030	28.0	22.0	50.0	0.017	1.57	1.60	3.16	0.044

Baseline model: age, sex, BMI, and Ba-PWV. New model: baseline model + h₃/h₁. Hypertension was defined as systolic blood pressure ≥140 mm·Hg or diastolic blood pressure ≥90 mm·Hg. AUC: area under the receiver-operating characteristic curve; CI: confidence interval; event: incident hypertension; NRI: continuous net reclassification improvement; IDI: integrated discrimination improvement; PWV: pulse wave velocity. h₃/h₁: the ratio of the tidal wave height (h₃) to the main wave height (h₁).