Table 4.

Guidance for the interpretation of BP phenotyping data obtained from a continual cuffless BP monitor when compared to BP characteristics obtained from ABPM.

Criterion	ABPM	Cuffless BP monitor
Triggering of readings	Automated, perceived by the patient	Automated, imperceptible by the patient
Frequency of readings	Every 30 minutes during daytime, every 1 h during nighttime (might vary across devices and guidelines)	On average, approximately one reading per hour
Conditions of measurement during daytime	Anytime a measurement is triggered and the patient is not performing important movements	Anytime the patient is quiet or performs no important movement (motion tolerance might vary across devices) with no control of body and arm position
Availability of nighttime readings	Yes	Yes
Feasibility of long-term monitoring	No	Yes, even for patients with reduced compliance
Systematic difference of calculated night dips	SBP night dips of ABPM are ~3.2x larger than those of the Cuffless BP monitor, with 95% confidence interval ranging from 2.3 to 4.4; DBP night dips of ABPM are ~2.8x larger than those of the Cuffless BP monitor, with 95% confidence interval ranging from 1.9 to 3.8