Silver Book Fact
The number of ambulatory medical care visits for hypertension was 55 million in 2009–49,966,000 physician office visits, 1,000,000 emergency department visits, and 4,182,000 outpatient visits.
Roger V, Go A, Lloyd-Jones D, Benjamin E, et al. Heart Disease and Stroke Statistics–2012 Update. Circ. 2012; 125(1): e2-e220. http://circ.ahajournals.org/content/125/1/e2