Table 2.

A summary of the testing performance of ten SBP models

No.	With arm-ECG and arm-PPG				With chest-ECG and arm-PPG
	ME	STD	MAE	RMSE	ME	STD	MAE	RMSE
1	1.17	6.00	4.73	6.09	0.96	5.97	4.66	6.02
2	1.58	6.62	5.08	6.78	1.46	6.60	5.01	6.74
3	0.73	5.88	4.58	5.90	0.59	5.86	4.54	5.87
4	0.29	6.15	4.82	6.14	0.02	6.33	4.96	6.30
5	0.85	5.85	4.59	5.89	0.68	5.86	4.57	5.88
6	0.74	5.88	4.59	5.90	0.61	5.86	4.55	5.86
7	0.79	5.95	4.65	5.98	0.68	5.91	4.60	5.93
8	1.59	4.44	3.69	4.70	1.58	4.41	3.62	4.67
9	1.62	4.43	3.67	4.70	1.61	4.41	3.61	4.67
10	1.63	4.44	3.68	4.71	1.61	4.42	3.62	4.69