Resting Heart Rate and Clinical Measures
Author Information
Author(s): Mavragani Amaryllis, Ennis Gilda E, Zhang Ruoyu, Feng Kent Y, Short Sarah A, Saeb Sohrab, Carroll Megan K, Olivier Christoph B, Simard Edgar P, Swope Susan, Williams Donna, Eckstrand Julie, Pagidipati Neha, Shah Svati H, Hernandez Adrian F, Mahaffey Kenneth W
Primary Institution: Verily Life Sciences
Hypothesis
This study aimed to assess the validity of the resting heart rate (RHR) measured by a wearable device compared against the gold standard of ECG and assess the relationships between device-measured RHR and a broad range of clinical characteristics.
Conclusion
RHR determined by the Verily Study Watch had an excellent correlation with that determined by ECG, and participants with higher RHR had similar trends in socioeconomic status, medical conditions, and physical function irrespective of sex.
Supporting Evidence
- Participants with higher RHR had higher BMI and C-reactive protein levels.
- Women and men showed similar trends in baseline characteristics associated with higher RHR.
- RHR measured by the wearable device correlated strongly with ECG measurements.
Takeaway
This study shows that a smartwatch can measure heart rate accurately, and people with higher heart rates often have more health issues.
Methodology
Participants' resting heart rates were measured using both ECG and a wearable device, and their clinical characteristics were analyzed.
Potential Biases
Potential self-selection bias may have impacted findings.
Limitations
The cohort may have a healthy user bias, and the analysis cohort was smaller than expected due to procedural inconsistencies.
Participant Demographics
The analysis cohort included 875 participants, with a mean age of 50.9 years, 59% female and 41% male.
Statistical Information
P-Value
0.76
Confidence Interval
95% CI 0.52-1.00
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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