Devices and TechnologyEvaluation of day-by-day variability of home blood pressure using a home blood pressure telemonitoring systemKaihara, Toshiki; Eguchi, Kazuo; Hoshide, Satoshi; Kario, KazuomiAuthor Information aNiijima-mura National Health Insurance Shikinejima Clinic, Tokyo bDepartment of Medicine, Division of Cardiovascular Medicine, Jichi Medical University School of Medicine, Tochigi, Japan * Toshiki Kaihara and Kazuo Eguchi contributed equally to the writing of this article. Correspondence to Kazuo Eguchi, MD, PhD, Department of Medicine, Division of Cardiovascular Medicine, Jichi Medical University School of Medicine, 3311-1 Shimotsuke, Tochigi, Japan Tel: +81 285 58 7344; fax: +81 285 44 5317; e-mail: [email protected] Received September 28, 2015 Received in revised form January 8, 2016 Accepted January 18, 2016 Blood Pressure Monitoring: June 2016 - Volume 21 - Issue 3 - p 184-188 doi: 10.1097/MBP.0000000000000180 Buy SDC Metrics Abstract Background There have been no reports indicating how a home blood pressure (HBP) telemonitoring system influences day-by-day HBP variability. Methods We evaluated day-by-day HBP variability using an HBP telemonitoring system, randomizing 60 individuals to either a telemonitoring group or the control group. Results There were no significant changes in day-by-day HBP variability between the two groups. However, the SD, root mean sum square differences, and the average real variability values for systolic blood pressure only in the control group in the latter half of the 4-week study were significantly greater than those in the first half (P<0.05). Conclusion A HBP telemonitoring system could be useful in obtaining stable HBP readings over a certain period of time. Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved.