A Comparison of Office Blood Pressure, Telemedical Home Blood Pressure and Ambulatory Blood Pressure Monitoring

Nikolai Hoffmann-Petersen*, Erling B. Pedersen
University Clinic of Nephrology and Hypertension, Departments of Medical Research and Medicine, Holstebro Hospital and Aarhus University, Denmark

© 2015 Hoffmann-Petersen and Pedersen.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Departments of Medical Research and Medicine, Holstebro Hospital, 7500 Holstebro, Denmark; Tel: +45 78436584; Fax: + 45 78436582; E-mail:



Telemonitoring of home blood pressure (HBP) is a new advance in blood pressure monitoring. The aim of this study was to compare office blood pressure (OBP) and telemedical home blood pressure with daytime ambulatory blood pressure (ABP).


One hundred and two patients were recruited consecutively from our Renal Outpatients’ Clinic. Office blood pressure was measured three times with the HBP equipment (A&D UA-767Plus BT). Telemonitoring of HBP was done for four consecutive days with three measurements three times daily followed by ABP (A&D TM-2430) on the next day. All patients received a questionnaire regarding acceptance of the equipment.


OBP was a significantly higher than daytime ABP (systolic/diastolic, 3.3/3.8 mmHg). HBP was significantly lower than daytime ABP (systolic/diastolic, -4.6/-1.6 mmHg). The strongest correlations were seen between all HBP readings day 2-4 and daytime ABP (systolic, r=0.69, p<0.001; diastolic, r=0.61, p<0.001). There were no significant differences between the different HBP schedules, i.e. 3 measurements twice daily for 3 days and 3 measurements three times daily for 4 days. Patients were content with and accepted the HBP measuring device.


The telemedical HBP was lower than daytime ABP. The observed difference could possible be due to less pain and more relaxation during HBP measurements or a systematic difference in the algoritms between the blood pressure measuring devices. HBP measurement during three days was as good as measurement during 4 days.. The equipment was well accepted among patients.

Keywords: Home blood pressure measurements, hypertension, telemedicine, telemedical home blood pressure, telemonitoring, TM-2430 , UA-767PlusBT.