Why the study?
Does the inclusion of 24-hour and nighttime blood pressure measurements improve the accurate identification of white coat hypertension compared to daytime blood pressure alone in African Americans?
Does the inclusion of 24-hour and nighttime blood pressure measurements improve the accurate identification of white coat hypertension compared to daytime blood pressure alone in African Americans?
Answers are grounded in this paper and cite their sources.
Using only daytime blood pressure overestimates the prevalence of white coat hypertension among African Americans, highlighting the importance of incorporating 24-hour and nighttime monitoring.
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 ≥140/90 mm Hg 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.
No takes yet. Share an insight, caveat, or question.
Anstey et al. (2018) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: