Journal
JOURNAL OF CLINICAL HYPERTENSION
Volume 20, Issue 8, Pages 1176-1182Publisher
WILEY
DOI: 10.1111/jch.13330
Keywords
ambulatory blood pressure; home blood pressure monitor; clinical management of high blood pressure (HBP); hypertension in African Americans; hypertensiongeneral; risk assessment
Categories
Funding
- Jackson State University [HHSN268201300049C, HHSN268201300050C]
- University of Mississippi Medical Center [HHSN268201300046C, HHSN268201300047C]
- National Heart, Lung, and Blood Institute (NHLBI) [HHSN268201300048C]
- National Center on Minority Health and Health Disparities (NCMHD) at the National Institute of Health (NIH) [HHSN268201300048C]
- National Heart, Lung, and Blood Institute [2R01 HL117323]
- American Heart Association [15SFRN2390002]
- [2T32HL007854-21]
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We calculated the prevalence of white coat hypertension (WCH) using out-of-clinic blood pressure (BP) in the daytime period; daytime and 24-hour periods; and daytime, 24-hour, and nighttime periods among 199 African Americans with clinic-measured systolic/diastolic BP 140/90mmHg in the Jackson Heart Study. Left ventricular mass index (LVMI) was measured among participants with WCH and 374 participants with sustained normotension (ie, non-hypertensive clinic, daytime, 24-hour, and nighttime BP). The prevalence of WCH was 29.6%, 21.1%, and 10.6% using daytime BP; daytime and 24-hour BP; and daytime, 24-hour, and nighttime BP, respectively. Compared with sustained normotension, LVMI was higher when WCH was defined using daytime BP (adjusted mean difference [95% CI] 5.0 [-0.2, 10.1] g/m(2)), but not when defined using daytime and 24-hour BP or daytime, 24-hour, and nighttime BP (adjusted mean difference [95% CI] 3.9 [-1.9, 9.7] and 0.4 [-7.3,8.2] g/m(2), respectively). Using only daytime BP overestimates the prevalence of WCH among African Americans.
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