Table 3.
Sensitivity and specificity of adjusted desaturation index with different data storage rates.
| Data storage rates WristOx 3100 | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 Hz | 0.5 Hz | 0.25 Hz | ||||||
| Sensitivity (CI95%) |
Specificity (CI95%) |
Sensitivity (CI95%) |
Specificity (CI95%) |
Sensitivity (CI95%) |
Specificity (CI95%) |
|||
| OSAS = RDI ≥ 5 Oximetry criteria |
OSAS = RDI ≥ 5 Oximetry criteria |
OSAS = RDI ≥ 5 Oximetry criteria |
||||||
| ADI2 > 19.7 | 85.7 (76.4–92.4) | 100 (80.5–100) | ADI2 > 19.5 | 85.7 (76.4–92.4) | 94.1 (71.3–99.9) | ADI2 > 18.4 | 85.7 (76.4–92.4) | 100 (80.5–100) |
| ADI3 > 7.6 | 89.3 (80.6–95) | 94.1 (71.3–99.9) | ADI3 > 10.4 | 81 (70.9–88.7) | 100 (80.5–100) | ADI3 > 7.3 | 86.9 (77.8–93.3) | 100 (80.5–100) |
| ADI4 > 2.1 | 94 (86.7–98) | 88.2 (63.6–98.5) | ADI4 > 3.7 | 88.1 (79.2–94.1) | 94.1 (71.3–99.9) | ADI4 > 3.6 | 89.3 (80.6–95) | 100 (80.5–100) |
|
| ||||||||
| OSAS = RDI ≥ 10 Oximetry criteria |
OSAS = RDI ≥ 10 Oximetry criteria |
OSAS = RDI ≥ 10 Oximetry criteria |
||||||
| ADI2 > 19.7 | 92.1 (83.6–97) | 92 (74–99) | ADI2 > 23.3 | 84.2 (74–91.6) | 96 (79.6–99.9) | ADI2 > 18.4 | 90.8 (81.9–96.2) | 88 (68.8–97.5) |
| ADI3 > 9.9 | 89.5 (80.3–95.3) | 92 (74–99) | ADI3 > 10.6 | 86.8 (77.1–93.5) | 96 (79.6–99.9) | ADI3 > 8.6 | 89.5 (80.3–95.3) | 92 (74–99) |
| ADI4 > 5.7 | 85.5 (75.6–92.5) | 96 (79.6–99.9) | ADI4 > 5.6 | 82.9 (72.5–90.6) | 100 (86.3–100) | ADI4 > 4 | 88.2 (78.7–94.4) | 92 (74–99) |
|
| ||||||||
| OSAS = RDI ≥ 15 Oximetry criteria |
OSAS = RDI ≥ 15 Oximetry criteria |
OSAS = RDI ≥ 15 Oximetry criteria |
||||||
| ADI2 > 22.8 | 94.2 (85.8–98.4) | 90.6 (75–98) | ADI2 > 23.3 | 89.9 (80.2–95.8) | 90.6 (75–98) | ADI2 > 22.1 | 89.9 (80.2–95.8) | 87.5 (71–96.5) |
| ADI3 > 12.3 | 94.2 (85.8–98.4) | 90.6 (75–98) | ADI3 > 10.8 | 91.3 (82–96.7) | 90.6 (75–98) | ADI3 > 9.1 | 92.7 (83.9–97.6) | 87.5 (71–96.5) |
| ADI4 > 5.8 | 91.3 (82–96.7) | 93.7 (79.2–99.2) | ADI4 > 6.1 | 87 (76.7–93.9) | 96.9 (83.8–99.9) | ADI4 > 6.8 | 84.1 (73.3–91.8) | 96.9 (83.8–99.9) |
RDI: respiratory disturbance index; ADI2, 3, and 4: adjusted desaturations index ≥2%, 3%, and 4%; LR (+) and (−): positive and negative likelihood ratio; CI95%: confidence interval 95%.