Evaluation of performance when comparing automatic diagnosis of AcuPebble SA100, based on ODI alone considering ≥3% desaturations as the threshold for events, with the reference test (CR-PG)
| Statistic | Value | 95% CI |
| Disease prevalence (%) | 52.00 | 43.70% to 60.22 |
| Sensitivity (%) | 91.03 | 82.38% to 96.32 |
| Specificity (%) | 93.06 | 84.53% to 97.71 |
| Positive likelihood ratio | 13.11 | 5.61 to 30.62 |
| Negative likelihood ratio | 0.10 | 0.05 to 0.20 |
| Positive predictive value (%) | 93.42 | 85.87 to 97.07 |
| Negative predictive value (%) | 90.54 | 82.48 to 95.11 |
| Accuracy (%) | 92 | 86.44 to 95.8 |
| Cohen’s Kappa | 0.84 | 0.75 to 0.93 |
CR-PG, cardiorespiratory polygraphy; ODI, Oxygen Desaturation Index.