Table 2 Comparison of pulse transit time (PTT)-estimated blood pressure parameters between beat-to-beat and intermittent measurement
Beat-to-beat measurement | Intermittent measurement | Difference | |
|---|---|---|---|
Average SBP, mmHg | 122.2 ± 20.0 | 122.0 ± 20.1 | 0.21** |
Average DBP, mmHg | 71.9 ± 13.7 | 71.9 ± 13.7 | −0.01 |
Maximum SBP, mmHg | 151.1 ± 26.2 | 132.1 ± 21.2 | 19.0*** |
Maximum DBP, mmHg | 86.5 ± 14.0 | 78.6 ± 13.8 | 7.8*** |
Minimum SBP, mmHg | 106.2 ± 19.1 | 113.7 ± 19.7 | −7.42*** |
Minimum DBP, mmHg | 58.8 ± 15.0 | 65.2 ± 14.3 | −6.5*** |
SD of SBP, mmHg | 5.2 ± 2.1 | 4.9 ± 2.1 | 0.2*** |
SD of DBP, mmHg | 3.7 ± 1.3 | 3.6 ± 1.5 | 0.1* |
CV of SBP, % | 4.3 ± 1.8 | 4.1 ± 1.8 | 0.2*** |
CV of DBP, % | 5.4 ± 2.8 | 5.3 ± 2.9 | 0.2* |
