Table 3.
Sensitivity and Specificity Analysis: ApneaLink(home) vs ApneaLink (lab)
| AHI | Sensitivity |
Specificity |
PPV |
NPV |
AUC |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| 2 h | 4 h | 2 h | 4 h | 2 h | 4 h | 2 h | 4 h | 2 h | 4 h | |
| ≥ 5 | 90.0 | 90.0 | 75.0 | 66.7 | 92.3 | 90.0 | 69.2 | 66.7 | 0.881 | 0.878 |
| ≥ 10 | 83.3 | 81.3 | 78.6 | 73.9 | 76.9 | 68.4 | 84.6 | 85.0 | 0.874 | 0.842 |
| ≥ 15 | 76.2 | 84.6 | 93.6 | 92.3 | 88.9 | 84.6 | 85.3 | 92.3 | 0.922 | 0.923 |
| ≥ 20 | 76.5 | 81.8 | 94.3 | 96.4 | 86.7 | 90.0 | 89.2 | 93.1 | 0.931 | 0.971 |
The apnea-hypopnea index (AHI) obtained from ApneaLink study in the home versus the ApneaLink AHI obtained during the sleep laboratory study. 2 hours (at-home and in-lab) = 52 subjects. 4 hours (at-home and in-lab) = 39 subjects. PPV refers to positive predictive value; NPV, negative predictive value; AUC, area under the curve.