Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 2005 Apr;7(4):205-9; quiz 210-1.
doi: 10.1111/j.1524-6175.2005.03503.x.

A comparison of morning blood pressure surge in African Americans and whites

Donald C Haas  1 , Linda M Gerber, Daichi Shimbo, Katherine Warren, Thomas G Pickering, Joseph E Schwartz
Affiliations
Comparative Study

A comparison of morning blood pressure surge in African Americans and whites

Donald C Haas et al. J Clin Hypertens (Greenwich). 2005 Apr.

Abstract

African Americans have twice the risk of suffering a stroke compared to whites, but the reasons for this disparity have yet to be elucidated. Recent data suggest that the morning blood pressure (BP) surge is an independent predictor of strokes. Whether African Americans and whites differ with respect to morning BP surge is unknown. African-American (n=183) and white (n=139) participants, age 18-65, were studied with 24-hour ambulatory BP monitoring. Morning surge was defined as morning BP minus the trough BP during sleep. The morning surge was significantly lower in African Americans than in whites (23 mm Hg vs. 27 mm Hg; both SEM=1.0; p=0.009). This relationship was no longer evident after adjusting for gender, age, and body mass index (23 mm Hg vs. 26 mm Hg; SE=1.0 and 1.1; p=nonsignificant). Morning BP surge is unlikely to account for differences in stroke incidence between African Americans and whites.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Distribution of blood pressure dipping status in African Americans and whites
Figure 2
Figure 2
Distribution of morning blood pressure surge in African Americans and whites
See this image and copyright information in PMC

Similar articles

See all similar articles

Cited by

References

    1. Sacco RL, Boden‐Albala B, Gan R, et al. HauserWA. Stroke incidence among white, black, and Hispanic residents of an urban community: the Northern Manhattan Stroke Study. Am J Epidemiol. 1998; 147: 259–268. - PubMed
    1. Broderick J, Brott T, Kothari R, et al. The Greater Cincinnati/Northern Kentucky stroke study: preliminary first‐ever and total incidence rates of stroke among blacks. Stroke. 1998; 29: 415–421. - PubMed
    1. Bruno A, Carter S, Qualls C, et al. Incidence of spontaneous intracerebral hemorrhage among Hispanics and non‐Hispanic whites in New Mexico. Neurology. 1996; 47: 405–408. - PubMed
    1. Otten MW Jr, Teutsch SM, Williamson DF, et al. The effect of known risk factors on the excess mortality of black adults in the United States. JAMA. 1990; 263: 845–850. - PubMed
    1. Kissela B, Schneider A, Kleindorfer D, et al. Stroke in a biracial population: the excess burden of stroke among blacks. Stroke. 2004; 35: 426–431. - PubMed

Publication types