Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Brachial artery dilation in response to sublingual nitroglycerin in midlife/older adults classified according to 2017 American College of Cardiology/American Heart Association guidelines. Box indicates interquartile range and median, whiskers indicate 5th to 95th percentiles. Normal blood pressure (BP): n=96; elevated BP: n=42; stage 1 hypertension: n=84; stage 2 hypertension: n=37.
