. Author manuscript; available in PMC: 2020 Jun 1.

Published in final edited form as: Blood Press Monit. 2019 Jun;24(3):130–136. doi: 10.1097/MBP.0000000000000379

Table 2:

Calibration equations for predicting systolic and diastolic blood pressure with an oscillometric device using random-zero sphygmomanometer blood pressure measurements as the independent variable.

Approach	Calibration Equations
Approach	Systolic Blood Pressure	Diastolic Blood Pressure
Ignoring the Change	OD = RZS	OD = RZS
Ordinary Least Squares	OD = 9.81 + 0.93*RZS	OD = 10.40 + 0.83*RZS
Average Difference	OD = 1.09 +RZS	OD = −2.44 + RZS
Deming Regression	OD = −4.31 + 1.04*RZS	OD = −6.07 + 1.05*RZS
Robust Regression	OD = 11.02 + 0.92*RZS	OD = 10.36 + 0.83*RZS

RZS=random-zero sphygmomanometer, OD=oscillometric device.