Analytical Methods and Statistical AnalysesConsistent relationship between automated office blood pressure recorded in different settingsMyers, Martin G.a; Valdivieso, Miguela; Kiss, AlexanderbAuthor Information aSchulich Heart Centre, Sunnybrook Health Sciences Centre, Department of Medicine, University of Toronto bDepartment of Research and Biostatistics, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada Correspondence to Dr Martin G. Myers, MD, FRCPC, Sunnybrook Health Sciences Centre, A-202, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada Tel: +1 416 480 4749; fax: +1 416 480 5404; e-mail: firstname.lastname@example.org Received 20 November 2008 Revised 10 March 2009 Accepted 17 March 2009 Blood Pressure Monitoring: June 2009 - Volume 14 - Issue 3 - p 108-111 doi: 10.1097/MBP.0b013e32832c5167 Buy Metrics Abstract Objective Conventional office blood pressure (BP) readings are affected by various factors including the presence of an observer and the setting. This study was undertaken to assess the consistency of automated self-measurement of BP in the office during repeat visits and in different settings. Automated office BP readings were also compared with the mean awake ambulatory BP. Methods BP readings were obtained using an automated BpTRU sphygmomanometer during routine visits to a hypertension specialist before and after 24-h ambulatory BP monitoring (ABPM) was performed. A third automated BP reading was obtained during the visit to the ABPM unit. Results There were no significant differences among the three automated office BP readings, which were all similar to the mean awake ambulatory BP. A manual BP reading taken by the ABPM technician was significantly higher (P<0.001) than the mean awake ambulatory BP. There was good agreement among the three automated office BP readings (intraclass correlation coefficient for systolic/diastolic BP r = 0.896/0.873). Conclusion Mean automated office BP readings are consistent from visit-to-visit regardless of the setting in which they are taken and they are similar to the mean awake ambulatory BP. © 2009 Lippincott Williams & Wilkins, Inc.