Identifying an acceptable number of ambulatory blood pressure measurements for accuracy of average blood pressure and nocturnal dipping status

Author:

Brito Leandro C.1ORCID,Rice Sean P. M.12ORCID,Bowles Nicole P.1ORCID,Butler Matthew P.13ORCID,McHill Andrew W.14ORCID,Emens Jonathan S.15ORCID,Shea Steven A.12ORCID,Thosar Saurabh S.1426ORCID

Affiliation:

1. Oregon Institute of Occupational Health Sciences, Oregon Health and Science University, Portland, Oregon, United States

2. OHSU-PSU School of Public Health Oregon Health and Science University, Portland, Oregon, United States

3. Department of Behavioral Neuroscience, Oregon Health and Science University, Portland, Oregon, United States

4. School of Nursing, Oregon Health and Science University, Portland, Oregon, United States

5. Portland Veterans Affairs Medical Center, Portland, Oregon, United States

6. Knight Cardiovascular Institute, Oregon Health and Science University, Portland, Oregon, United States

Abstract

We found that a minimum of 11 blood pressure (BP) measures are necessary to calculate an accurate average daytime BP, and 8 nighttime measures are necessary to calculate an accurate nighttime average if 95% accuracy is acceptable. Regarding BP dipping status, the current recommendations (20 daytime/7 nighttime) inaccurately classified the dipping status 10.5% of the time, suggesting that guidelines may need to be updated to classify patients as nocturnal dippers or nondippers correctly.

Funder

HHS | NIH | National Heart, Lung, and Blood Institute

Oregon Health and Science University

Medical Research Foundation of Oregon

.); the Oregon Healthy Workforce Center, a National Institute for Occupational Safety and Health (NIOSH) Total Worker Health Center of Excellence

Publisher

American Physiological Society

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