Hypertension Prevalence, Awareness, Treatment, and Control Among Adults Age 18 and Older: United States, August 2021–August 2023

Used in 2 entries

For each citing entry, the verbatim excerpt and Likelier's calculation notes (how the source's number was converted to the lifetime-probability framing) are shown below. Click through to read the full claim ledger.

1. [1] Silent hypertension Risk

   Statistic

   47.7% of US adults had hypertension; 40.8% of those with hypertension were unaware of their condition (Aug 2021–Aug 2023)

   “"The prevalence of hypertension among adults aged 18 and over was 47.7% and was higher in men (50.8%) than women (44.6%). [...] During August 2021–August 2023, 59.2% of adults with hypertension were aware of their hypertension status."”

   Calculation notes

   Awareness rate 59.2% means unawareness rate = 100% - 59.2% = 40.8%. Point-in-time undiagnosed prevalence across all US adults: 47.7% (prevalence) × 40.8% (unaware fraction) = 19.5%, rounded to 19 per 100 for the native numerator/denominator. This is the cross-sectional snapshot — at any given moment, approximately 1 in 5 US adults has hypertension they do not know about.
   

   Source date: 2024-10-01 · Accessed: 2026-05-03

2. [2] Low-sodium diet Decision · inaction side

   Statistic

   47.7% of US adults had hypertension during August 2021–August 2023; men 50.8%, women 44.6%; prevalence by age 23.4% (18-39), 52.5% (40-59), 71.6% (60+)

   “"During August 2021–August 2023, the prevalence of adult hypertension was 47.7%... Hypertension was higher in men (50.8%) than women (44.6%) and increased with age: 23.4% for ages 18–39, 52.5% for 40–59, and 71.6% for 60 and older."”

   Calculation notes

   CDC NCHS Data Brief No. 511 (October 2024), based on NHANES August 2021 - August 2023 measurement data. The 47.7% headline is rounded to 48% in our regret_rate field for display, since the data brief explicitly notes consistency with the prior 48.1% figure from 2017-March 2020. We use that as the inaction-side downstream-risk proxy. This is NOT a regret measure about salt habits. Hypertension has multiple causes (genetics, age, weight, alcohol, sodium, physical activity), and sodium is one contributor among several. Many of the 47.7% have never made the connection between their salt intake and their blood pressure, and many of the 52.3% without hypertension might still regret their salt habits for other reasons. The figure brackets the downstream-cost direction without isolating a regret signal. Sample N=6,084 for the prevalence analysis.
   

   Independence note: US federal government surveillance data (NHANES via CDC NCHS) with publicly disclosed methodology and weighting; no commercial sponsorship of the analysis. Independent of the He et al. BMJ meta-analysis and the SSaSS trial sources.

   Source date: 2024-10-01 · Accessed: 2026-05-30

Also cited in these entries

HealthDirect

Silent hypertension

What are the odds of having undiagnosed high blood pressure without regular monitoring?

1 in 1.3 lifetime(75%)