Table 3.
Pearson’s Correlation Coefficient (R), Mean Absolute Error (MAE), and Probability of Absolute Error Less Than Standard Deviation (PAE<SD) Between Measured and Predicted Apnea–Hypopnea Index (AHI), Oxygen Desaturation Index (ODI), and Minimum Oxygen Saturation (minSpO2) Scores with Three-fold Cross-Validation
| AHI | ODI | minSpO2 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| R* | MAE | PAE<SD | R* | MAE | PAE<SD | R* | MAE | PAE<SD | ||
| Whole group | Train | 0.74 ± 0.0 | 4.37 ± 0.3 | 0.89 ± 0.0 | 0.74 ± 0.0 | 4.09 ± 0.3 | 0.89 ± 0.0 | 0.73 ± 0.0 | 2.95 ± 0.3 | 0.83 ± 0.0 |
| Valid | 0.60 ± 0.1 | 5.01 ± 0.7 | 0.86 ± 0.0 | 0.61 ± 0.1 | 4.66 ± 0.6 | 0.86 ± 0.0 | 0.56 ± 0.0 | 3.42 ± 0.3 | 0.78 ± 0.1 | |
| Test | 0.65 ± 0.0 | 6.10 ± 0.1 | 0.81 ± 0.0 | 0.67 ± 0.0 | 5.59 ± 0.3 | 0.84 ± 0.0 | 0.60 ± 0.0 | 3.61 ± 0.2 | 0.74 ± 0.0 | |
| Men group | Train | 0.95 ± 0.0 | 3.60 ± 0.3 | 0.95 ± 0.0 | 0.95 ± 0.0 | 3.13 ± 0.2 | 0.94 ± 0.0 | 0.92 ± 0.0 | 3.10 ± 0.5 | 0.83 ± 0.1 |
| Valid | 0.77 ± 0.1 | 5.05 ± 1.2 | 0.90 ± 0.1 | 0.76 ± 0.1 | 4.52 ± 1.1 | 0.90 ± 0.1 | 0.73 ± 0.1 | 3.85 ± 0.1 | 0.72 ± 0.0 | |
| Test | 0.71 ± 0.0 | 5.01 ± 0.3 | 0.90 ± 0.1 | 0.69 ± 0.0 | 4.59 ± 0.2 | 0.92 ± 0.0 | 0.72 ± 0.0 | 3.60 ± 0.5 | 0.73 ± 0.0 | |
| Women group | Train | 0.86 ± 0.0 | 3.93 ± 1.4 | 0.87 ± 0.1 | 0.85 ± 0.0 | 3.87 ± 0.6 | 0.83 ± 0.1 | 0.84 ± 0.0 | 2.32 ± 0.1 | 0.89 ± 0.0 |
| Valid | 0.77 ± 0.0 | 4.47 ± 0.6 | 0.84 ± 0.0 | 0.75 ± 0.0 | 4.32 ± 0.5 | 0.82 ± 0.0 | 0.60 ± 0.1 | 2.86 ± 0.4 | 0.86 ± 0.1 | |
| Test | 0.73 ± 0.1 | 4.22 ± 1.2 | 0.85 ± 0.1 | 0.74 ± 0.1 | 4.21 ± 0.5 | 0.82 ± 0.1 | 0.55 ± 0.0 | 3.04 ± 0.3 | 0.78 ± 0.0 | |
Notes: *All Pearson’s correlation coefficients (R) were statistically significant at P < 0.01. Values are Listed for Three Different Groups/Subgroups: Whole Dataset (n = 553), Men Group (n = 197) and Women Group (n = 356).