BP indicates blood pressure; DBP, diastolic blood pressure; NHANES, National Health and Nutrition Examination Survey; and SBP, systolic blood pressure. Whelton et al 2017 High Blood Pressure Clinical Practice Guideline e23 have been steadily improving since the 1960s,S3.4-1 S3.4-4 with NHANES 2009 to 2012 prevalence estimates for men and women, respectively, being 80.2% and 85.4% for awareness, 70.9% and 80.6% for treatment (88.4% and 94.4% in those who were aware), 69.5% and 68.5% for control in those being treated, and 49.3% and 55.2% for overall control in adults The NHANES experience may under- estimate awareness, treatment, and control of hypertension because it is based on BP estimates derived from an aver- age of readings obtained at a single visit, whereas guidelines recommend use of BP averages of 2 readings obtained on 2 occasions. In addition, the current definition of con- trol excludes the possibility of control resulting from life- style change or nonpharmacological interventions. 