Discrepancy Between Tonometric Ambulatory and Cuff-Based Office Blood Pressure Measurements in Patients With Type 1 Diabetes

Abstract

The aim of the current study was to compare ambulatory blood pressure (ABP) with office blood pressure (OBP) in diagnosing hypertension (HTN) in type 1 diabetes. The cross-sectional study included 569 type 1 diabetes patients, with a mean±standard deviation (SD) age of 55±13 years and diabetes duration of 33±16years, and 315 (55%) men. Blood pressure ≥130/80mmHg defined HTN. ABP was measured by tonometry and OBP by sphygmomanometry. Elevated ABP with normal OBP defined masked uncontrolled HTN, and normal ABP with elevated OBP defined isolated uncontrolled clinic HTN. Mean±SD 24-hour ABP, daytime ABP, and OBP was 128±16/75±10mmHg, 133±16/77±11mmHg, and 136±14/76±8mmHg, respectively (P <130/80mmHg despite regular follow-up. © 2012 Wiley Periodicals, Inc.