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Table 2 Test performance characteristics for personal fitness tracker detection of tachycardia, as compared to SPO2-R

From: Use of wearable devices for post-discharge monitoring of ICU patients: a feasibility study

 

Sinus rhythm

Atrial fibrillation

Sensitivity

0.695

0.516

Specificity

0.988

0.995

Positive predictive value

0.948

0.983

Negative predictive value

0.914

0.804

Accuracy

0.92

0.836

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