Key result
Duffy red blood cell proteins show no association with elevated blood pressure in Black patients.
Why the study?
The reasons for the greater prevalence of hypertension in Blacks compared to Whites, including the role of Duffy red blood cell proteins and social class, were unclear.
Cross-Sectional (n=722)
Social class merits priority over ancestry markers in hypertension disparity research; Level 5 data leaves open causal confirmation.
Skin color and social class have been suggested as reasons to explain the greater prevalence of hypertension in Blacks as compared to Whites. The presence of Duffy red blood cell proteins, a measure of "whiteness" in Blacks, was unrelated to the presence of elevated blood pressure in 722 Black hospital patients. The finding suggests that social class rather than skin color is associated with the greater prevalence of hypertension in Blacks.
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Miller et al. (1985) conducted a cross-sectional in Hypertension (n=722). Duffy red blood cell proteins was evaluated on Elevated blood pressure. The presence of Duffy red blood cell proteins was unrelated to elevated blood pressure in 722 Black hospital patients.
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