“[N]early a third of black men (34%) and black women (31%) are considered hypertensive, compared to 25% and 21% of white men and women, respectively.” One might think these disparities are due, in part, to black-white differences in income, education level, body mass index, smoking, and the like, all factors that cause hypertension. But these disparities persist even when they are adjusted for the effect of these factors.

