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file is at a SpO2 desaturation>=2%, and I know
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ahi_a0h3 is at a SpO2 desaturation>=3%. How can I classify the SpO2 desaturation of Hypopnean events
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show the % of SpO2 desaturation? and is the row of SpO2 desaturation under the Hypopnean
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avgspo2baseline_f1t3
under
Sleep Monitoring/Polysomnography/Administrative
in
NUMOM2B variables
The EDF and XML annotation files from the nuMoM2b sleep substudy were imported in Matlab for analysis of baseline SpO2 (oxygen saturation). First step involved identification of the initial sleep onset (stage=2). Sixty seconds of wake data preceding the initial sleep onset was identified as the baseline segment for calculation of average SpO2. If 60s of wake data was not present, 30s was used as the baseline segment. Average value of SpO2 signal was calculated at this baseline segment. If there was no usable SpO2 signal or baseline wake data before sleep onset, then baseline SpO2 is missing. A few subjects had less than 90% SpO2 at baseline either due to signal distortion/artifacts or baseline desaturation events and were marked as missing.
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for certain has degraded SpO2 information, so to speak.
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recall discussion about the SpO2 desaturations being shifted 30
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is to "re-detect" the SpO2 desaturations and align/link them
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