Pulse Oximetry for the Detection of Obstructive Sleep Apnea Syndrome: Can the Memory Capacity of Oxygen Saturation Influence Their Diagnostic Accuracy?
Table 2
Area under the ROC curves of the adjusted desaturation index with different data storage rates.
AUC-ROCs (CI95%)
Data storage rates WristOx 3100
1 Hz
0.5 Hz
0.25 Hz
OSAS = RDI ≥ 5 Oximetry criteria
ADI2
0.965 (0.909–0.992)
0.948 (0.885–0.982)
0.958 (0.898–0.988)*
ADI3
0.966 (0.91–0.992)
0.95 (0.888–0.984)
0.961 (0.903–0.989)*
ADI4
0.963 (0.905–0.990)
0.949 (0.887–0.983)
0.957 (0.897–0.987)*
OSAS = RDI ≥ 10 Oximetry criteria
ADI2
0.947 (0.884–0.982)
0.945 (0.881–0.981)
0.947 (0.884–0.982)*
ADI3
0.948 (0.885–0.982)
0.950 (0.888–0.984)
0.951 (0.889–0.984)*
ADI4
0.954 (0.893–0.986)
0.946 (0.883–0.981)
0.942 (0.877–0.979)*
OSAS = RDI ≥ 15 Oximetry criteria
ADI2
0.954 (0.893–0.986)
0.949 (0.887–0.983)
0.946 (0.882–0.981)*
ADI3
0.954 (0.883–0.982)
0.947 (0.883–0.982)
0.947 (0.884–0.982)*
ADI4
0.954 (0.894–0.986)
0.942 (0.877–0.979)
0.94 (0.875–0.978)*
RDI: respiratory disturbance index; AUC-ROC: area under the ROC curve; ADI2, 3, and 4: adjusted desaturations index ≥2%, 3%, and 4%; CI95%: confidence interval 95%; * between ADI 1 Hz, 0.5 Hz and 0.25 Hz.
