TABLE 3.

Correlation coefficients between the input regression features and the target outputs.

Parameters	Value (n = 3,818)
	Correlation coefficient
brSBP/Zao	0.51
brDBP/Zao	–0.41
HR/Zao	0.17
cfPWV/Zao	0.87
crPWV/Zao	0.85
brSBP/CT	–0.48
brDBP/CT	0.39
HR/CT	–0.16
cfPWV/CT	−0.87
crPWV/CT	−0.84

Highest correlation values are presented in bold. brSBP, brachial systolic blood pressure; brDBP, brachial diastolic blood pressure; HR, heart rate; PWV, pulse wave velocity; cfPWV, carotid-femoral PWV; crPWV, carotid-radial PWV; Z_ao, aortic characteristic impedance; C_T, total arterial compliance.