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Accuracy of a Novel High-Throughput "Car Blood Pressure" Measurement Protocol
Neiberg de Alcantara Lima1,2, Shaun Cardozo1, Andrew Johnson3
1Division of Cardiovascular Diseases, Department of Internal Medicine, Wayne State University, Detroit, MI, USA.
American Journal of Hypertension
|January 31, 2025
Summary
A new car-based blood pressure (BP) screening method accurately measures hypertension. This accessible approach could significantly improve large-scale hypertension detection rates in the United States.
Area of Science:
- Cardiovascular Medicine
- Public Health
- Biomedical Engineering
Background:
- Hypertension affects over one-third of US adults, with many unaware of their condition.
- Current hypertension identification is primarily confined to clinical settings, limiting accessibility.
- A novel high-throughput screening protocol, car-blood pressure (car-BP), was developed to measure BP in automobiles.
Purpose of the Study:
- To assess the accuracy of the car-BP measurement method.
- To compare car-BP readings with traditional clinic-based BP measurements.
Main Methods:
- 100 participants underwent three BP readings in a clinic and three readings in a parked car using the same validated device (Omron HEM-907XL).
- Standardized BP measurement guidelines were followed for both scenarios.
- Clinic and car-BP readings were averaged and compared for each individual.
Main Results:
- Mean clinic BP was 120.9/78.0 mm Hg; mean car-BP was 118.9/76.0 mm Hg.
- The mean difference in systolic BP between methods was -1.92 mm Hg (95% CI: -3.2 to -0.7).
- 85% of participants showed a BP difference of ≤10 mm Hg between car and clinic measurements.
Conclusions:
- Car-BP offers an innovative and accessible method for hypertension screening.
- This approach has the potential to facilitate large-scale hypertension detection campaigns.
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