Table 4 Comparison of calibration-free and calibrated fitting errors (mmHg) for different age groups.

From: An Unobtrusive and Calibration-free Blood Pressure Estimation Method using Photoplethysmography and Biometrics

 

Calibration-free

Calibrated

Young

SBP Error

2.1 ± 13.6**

−0.1 ± 9.5

DBP Error

2.3 ± 9.5

−0.1 ± 9.0

Older

SBP Error

5.5 ± 15.5**

0.0 ± 11.2

DBP Error

2.6 ± 9.3**

−0.2 ± 7.2

  1. *P < 0.05 **P < 0.001 versus calibrated results.