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Item from the Obstructive Sleep Apnea-18 Quality of Life Questionnaire. Franco RA et al., 2000 (PubMed ID: 10889473)Search for all OSA-18 variables within this dataset

Item from the Obstructive Sleep Apnea-18 Quality of Life Questionnaire. Franco RA et al., 2000 (PubMed ID: 10889473)Search for all OSA-18 variables within this dataset

Data was lost at the end of sleep period because recording ended before wake.

Data was lost at the end of sleep period because recording ended before wake.

Scorer noted that there was a problem differentiating stage wake from stage sleep.

Quality of SUM channel

Background The Apnea Positive Pressure Long-term Efficacy Study (APPLES) was ...

Due to signal problems, scorer was unable to reliably assess arousals in stage rapid eye movement sleep (REM). The scoring of arousals in stage rapid eye movement sleep (REM) was determined to be unreliable.

1=Sleep staging problem - scoring rapid eye movement sleep (REM)/non-rapid eye movement sleep (NREM) unreliable (when identification of Stage rapid eye movement sleep (REM) is unreliable (usually due to poor or missing EMG or when both EOGs are absent))

Scorer noted that there was a problem differentiating REM and non-REM sleep.

Scorer noted that there was a problem differentiating REM and non-REM sleep.