Table 3 Factors associated with BP differences between test device and observer measurements

From: Validation of an automated home blood pressure measurement device in oldest-old populations

Variables

Estimates

95% CI

Systolic BP difference

 Women

−3.33

−7.23 to 0.58

 Age (years)

0.16

−0.56 to 0.88

 Small cuff (vs. standard)

−10.9*

−17.5 to −4.33

 Arm circumference (cm)

−0.58

−1.39 to 0.22

 Observer systolic BP (mmHg)

0.15

−0.08 to 0.39

 Pulse pressure (mmHg)

−0.22

−0.50 to 0.05

Diastolic BP difference

 Women

0.09

−2.79 to 2.98

 Age (years)

−0.15

−0.68 to 0.38

 Small cuff (vs. standard)

1.81

−3.07 to 6.69

 Arm circumference (cm)

0.26

−0.34 to 0.85

 Observer diastolic BP (mmHg)

−0.13

−0.30 to 0.04

 Pulse pressure (mmHg)

0.17*

−0.09 to 0.24

  1. All parameter estimates are unstandardized regression coefficients
  2. CI confidence intervals, BP blood pressure
  3. *P < 0.05