Arrhythmias & electrophysiology
Diagnostic Accuracy of Apple Watch Electrocardiogram for Atrial Fibrillation: A Systematic Review and Meta-Analysis
Authors' conclusion
The Apple Watch ECG carries high accuracy in detecting atrial fibrillation, providing a convenient diagnostic option for patients.
Study context
- Population
- Studies comparing the diagnostic accuracy of Apple Watch to standard 12-lead electrocardiography (ECG) for detecting atrial fibrillation (AF)
- Participants
- 4,241 participants · 11 studies
- Comparison
- Diagnostic accuracy of Apple Watch to standard 12-lead ECG
- Outcome
- Pooled sensitivity and specificity of the Apple Watch for detecting AF
Pooled result
As reported in the abstract
| Group | Sensitivity | Specificity |
|---|---|---|
| Apple Watch ECG | 94.8% (95% CI: 91.7% to 96.8%; I2 = 67%) | 95% (95% CI: 88.6% to 97.8%; I2 = 88%) |
Apple Watch ECG
Sensitivity94.8% (95% CI: 91.7% to 96.8%; I2 = 67%)
Specificity95% (95% CI: 88.6% to 97.8%; I2 = 88%)
Further pooled results
Area under the receiver operating characteristic curve
- AUC
- 0.96 (95% CI: 0.92-0.97)
Participant characteristics
- Mean age
- 62.56 ± 3.92 years
- Females
- 28%
Original publication
Diagnostic Accuracy of Apple Watch Electrocardiogram for Atrial Fibrillation: A Systematic Review and Meta-Analysis. JACC Adv. Published 9 January 2025. doi:10.
Summarised from the published abstract; every number is checked against it