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Potential US Population Impact of the 2017 ACC/AHA High Blood Pressure Guideline
Paul Muntner1, Robert M Carey2, Samuel Gidding3
1Department of Epidemiology, University of Alabama at Birmingham, Birmingham, Alabama (P.W.) pmuntner@uab.edu.
Insights
The 2017 ACC/AHA hypertension guideline significantly increases diagnosed high blood pressure prevalence in US adults compared to JNC7. It also recommends more medication and intensive blood pressure control for many patients.
Area of Science:
- Cardiology
- Public Health
- Epidemiology
Background:
- The 2017 American College of Cardiology/American Heart Association (ACC/AHA) Guideline provides updated recommendations for hypertension management.
- These guidelines define hypertension, establish blood pressure (BP) thresholds for medication initiation, and set target BP goals.
Purpose of the Study:
- To compare the prevalence of hypertension and treatment recommendations between the 2017 ACC/AHA guideline and the JNC7 guideline.
- To assess the prevalence of uncontrolled BP among US adults under both guideline criteria.
Main Methods:
- Analysis of data from the 2011-2014 National Health and Nutrition Examination Survey (N=9,623).
- Standardized, triplicate BP measurements were averaged and weighted for US population estimates.
Main Results:
- The 2017 ACC/AHA guideline identified a higher hypertension prevalence (45.6%) compared to JNC7 (31.9%).
- Antihypertensive medication was recommended for 36.2% under ACC/AHA versus 34.3% under JNC7.
- Over half (53.4%) of US adults on medication had BP above the goal per ACC/AHA, compared to 39.0% per JNC7.
Conclusions:
- The 2017 ACC/AHA guideline leads to a substantial increase in diagnosed hypertension prevalence.
- It results in a modest rise in medication recommendations and more intensive BP control targets for treated individuals.
Background:
The 2017 American College of Cardiology/American Heart Association (ACC/AHA) Guideline for the Prevention, Detection, Evaluation and Management of High Blood Pressure in Adults provides recommendations for the definition of hypertension, systolic and diastolic blood pressure (BP) thresholds for initiation of antihypertensive medication, and BP target goals.
Objectives:
This study sought to determine the prevalence of hypertension, implications of recommendations for antihypertensive medication, and prevalence of BP above the treatment goal among US adults using criteria from the 2017 ACC/AHA guideline and the Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (JNC7).
Methods:
The authors analyzed data from the 2011 to 2014 National Health and Nutrition Examination Survey (N = 9 623). BP was measured 3 times following a standardized protocol and averaged. Results were weighted to produce US population estimates.
Results:
According to the 2017 ACC/AHA and JNC7 guidelines, the crude prevalence of hypertension among US adults was 45.6% (95% confidence interval [CI]: 43.6% to 47.6%) and 31.9% (95% CI: 30.1% to 33.7%), respectively, and antihypertensive medication was recommended for 36.2% (95% CI: 34.2% to 38.2%) and 34.3% (95% CI: 32.5% to 36.2%) of US adults, respectively. Nonpharmacological intervention is advised for the 9.4% of US adults with hypertension who are not recommended for antihypertensive medication according to the 2017 ACC/AHA guideline. Among US adults taking antihypertensive medication, 53.4% (95% CI: 49.9% to 56.8%) and 39.0% (95% CI: 36.4% to 41.6%) had BP above the treatment goal according to the 2017 ACC/AHA and JNC7 guidelines, respectively.
Conclusions:
Compared with the JNC7 guideline, the 2017 ACC/AHA guideline results in a substantial increase in the prevalence of hypertension, a small increase in the percentage of US adults recommended for antihypertensive medication, and more intensive BP lowering for many adults taking antihypertensive medication.
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