Home BP Cuff Fit: 17M+ Affected | Study Findings
- adults may not be getting accurate blood pressure readings from over-the-counter devices due to inadequate cuff sizes, according to a new study.The research highlights that standard arm cuff...
- the study, conducted by researchers at Johns Hopkins Bloomberg School of Public Health, compared standard cuff sizes with arm circumference data from national health surveys.
- The problem disproportionately affects Black adults, with nearly 12% having arm circumferences outside the standard range.
Millions of Americans are possibly receiving inaccurate blood pressure readings at home due to improper cuff sizes, impacting effective hypertension monitoring. This critical issue affects over 17 million U.S. adults, as revealed by a recent study, with a disproportionate impact on black adults, who face higher rates of hypertension. The research, published in Hypertension, highlights that standard cuffs often fail to fit a significant portion of the population.Experts recommend wider availability of appropriately sized cuffs to address this pervasive problem of inaccurate blood pressure measurement. News directory 3 is following the latest findings. Discover what’s next for improved patient care.
Millions Face Inaccurate Blood Pressure Readings Due to Cuff Size Disparity
Updated June 10, 2025
Millions of U.S. adults may not be getting accurate blood pressure readings from over-the-counter devices due to inadequate cuff sizes, according to a new study.The research highlights that standard arm cuff ranges on these devices often fail to accommodate a notable portion of the population, impacting accurate hypertension monitoring.
the study, conducted by researchers at Johns Hopkins Bloomberg School of Public Health, compared standard cuff sizes with arm circumference data from national health surveys. The findings reveal that approximately 6.7% of U.S. adults, or 17.3 million people, have arms that fall outside the standard cuff size range.The majority, about 6.4% (16.5 million adults), require larger cuffs.
The problem disproportionately affects Black adults, with nearly 12% having arm circumferences outside the standard range. This is especially concerning given the higher prevalence of hypertension among this population.
Incorrect cuff sizes can lead to significant errors in blood pressure readings, hindering effective blood pressure monitoring. The study, published in Hypertension, was presented at the American Heart Association’s Hypertension meeting in Chicago.
“The fact that millions of Americans are affected shows that this is not a small problem; and probably the easiest solution is for retailers just to offer a wider range of cuff sizes for no extra cost,” said Dr. Kunihiro Matsushita, professor at the Bloomberg School’s Department of epidemiology and senior author of the study.
Researchers analyzed 16 popular automatic blood pressure devices, purchasing 10 for evaluation. They compared cuff sizes to arm circumference measurements from over 13,000 adults from U.S. National Health and Nutrition Examination Surveys (NHANES) conducted between 2015 and 2020.
nine devices had cuffs ranging from 22 to 42 centimeters (8.6 to 16.5 inches).Data showed 6.7% of adults had arms outside this range: 0.3% below 22 cm and 6.4% above 42 cm. NHANES data indicated that 11.8% of Black adults had arm sizes outside the standard range, nearly double the national average. Matsushita noted this is especially concerning as 57.1% of Black adults have hypertension, compared to 43.6% of white adults and 43.7% of Hispanic adults.
while some devices offered larger cuffs as separate purchases, the researchers advocate for manufacturers to include a wider range of cuff sizes in standard packages.
“Consumers shoudl be able to buy the blood pressure cuff sizes they need just as they can buy clothing sizes they need,” Matsushita said.
The researchers suggest even a slight shift in the existing cuff size range, to 25 to 45 centimeters (9.8 to 17.7 inches), would improve coverage of American arm sizes, leading to more accurate blood pressure measurement and better hypertension management.
What’s next
Health care providers should educate patients on the importance of selecting the correct cuff size when purchasing home blood pressure monitors to ensure accurate readings and effective hypertension management.