Key result
2017 ACC/AHA guideline nearly triples hypertension prevalence vs. JNC8, while lowering control rates.
Why the study?
The impact of the 2017 ACC/AHA hypertension guideline on prevalence, awareness, treatment, control, and determinants of hypertension in Khuzestan province, Iran, was unknown and required updating.
Cross-Sectional (n=30,424)
Yes
May inflate prevalence estimates while lowering apparent control rates; leaves open effects on cardiovascular outcomes and resource needs.
BACKGROUND: In 2017, the American College of Cardiology/American Heart Association (ACC/AHA) provided a new guideline for hypertension prevention and management. We aimed to update the prevalence, awareness, control, and determinants of hypertension based on this guideline in Khuzestan province, southwest of Iran, and to estimate the number of people who are eligible for non-pharmacologic and pharmacologic intervention. METHODS: This population-based cross-sectional study was conducted in Khuzestan, a large province in the southwest of Iran. Comprehensive information about the potential relating factors of hypertension was collected, blood pressure was measured, and anthropometric measurements were obtained. Moreover, the dietary pattern was evaluated in 2830 individuals, using a qualitative food frequency questionnaire. RESULTS: Among 30,506 participants, 30,424 individuals aged 20-65 years were eligible for the study. In comparison with the previous guideline released by the Joint National Committee (JNC8), the prevalence of hypertension in Khuzestan dramatically increased from 15.81 to 42.85% after implementation of the ACC/AHA guideline, which was more dominant in the male population and the 45-54 age group. The sex and age adjustment of the hypertension prevalence was estimated to be 39.40%. The percentage of hypertension awareness, treatment, and control were 45.85%, 35.42%, and 59.63%, which dropped to 22.72%, 26.37%, and 28.94% after implementation of new guideline, respectively. CONCLUSIONS: In the ACC/AHA guideline, a higher number of individuals with the pre-hypertension condition were shifted into the hypertension category and the level of awareness, treatment, and control were dramatically decreased, which highlight a great need to expand the public health infrastructure for further managing the substantial increased burden on healthcare system. However, further studies with population over 65 years are required to estimate the eligibility for antihypertensive treatment in this province after implementation of new guideline.
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Sadeghi et al. (2021) conducted a cross-sectional in Hypertension (n=30,424). 2017 ACC/AHA hypertension guideline diagnostic criteria vs. JNC8 hypertension guideline diagnostic criteria was evaluated on Hypertension prevalence. Application of the 2017 ACC/AHA guideline dramatically increased hypertension prevalence from 15.81% to 42.85% compared to the JNC8 guideline, while decreasing rates of awareness, treatment, and control.
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