A Novel Neural Network Model for Blood Pressure Estimation Using Photoplethesmography without Electrocardiogram

Table 2

Performance results of different number of the input parameters.

Number of the input parameters	SBP		DBP
	e (mmHg)	er (%)	e (mmHg)	er (%)
3 parameters (10 Hz interval)	8.29 ± 6.60	6.00 ± 5.28	6.19 ± 6.63	9.14 ± 7.45
4 parameters (5 Hz interval)	7.62 ± 6.08	5.49 ± 4.77	4.31 ± 3.83	3.84 ± 3.39
7 parameters (2 Hz interval)	6.59 ± 5.25	4.72 ± 4.02	4.34 ± 5.23	4.72 ± 3.91
12 parameters (1 Hz interval)	4.64 ± 3.63	3.42 ± 2.61	3.69 ± 2.74	3.12 ± 4.11
22 parameters (0.5 Hz interval)	4.02 ± 2.79	2.84 ± 2.00	2.27 ± 1.82	4.39 ± 3.60