Table 4.
Sensitivity, PPV, Accuracy and Score for Each Rhythm Following 5‐Times 5‐fold Cross‐Validation (Highlighted in Grey), as Well as the Positive Predictive Value Observed by Bedside Monitors
| Rhythm | Sensitivity (%) | PPV (%) | Accuracy (%) | Score (%) | PPV (%) Current study (clinical annotations) | PPV (%) Physionet 2015 Challenge | PPV (%) MIMIC II study | PPV (%) UCSF study |
|---|---|---|---|---|---|---|---|---|
| Aystole | 100.00±0.00 | 61.58±0.00 | 99.42±0.00 | 99.42±0.00 | 11.31 | 16.67 | 9.33 | 32.83 |
| EB | 99.29±0.78 | 82.64±3.04 | 98.65±0.27 | 98.65±0.26 | 22.64 | 50 | 70.71 | NA |
| ET | 91.55±0.85 | 96.11±0.96 | 99.20±0.02 | 98.64±0.11 | 17.11 | 94.92 | 76.93 | NA |
| VF | 79.45±9.84 | 78.83±12.51 | 99.29±0.33 | 99.29±0.33 | 21.74 | 10.34 | 20.33 | 67.72 |
| VT | 97.33±0.60 | 95.13±0.99 | 98.73±0.21 | 98.22±0.27 | 53.66 | 26.23 | 53.42 | 13.00 |
| AF | 89.99±1.13 | 74.41±1.44 | 90.48±0.42 | 84.61±0.89 | NA | NA | NA | NA |
| SR | 80.33±1.41 | 94.74±0.81 | 89.16±0.45 | NA | NA | NA | NA | NA |
AF indicates atrial fibrillation; EB, extreme bradycardia; ET, extreme tachycardia; MIMIC, Medical Information Mart for Intensive Care; NA, not applicable; PPV, positive predictive value; SR, sinus rhythm; USCF, University of California, San Francisco; VF, ventricular fibrillation; and VT, ventricular tachycardia.