In-Home Overnight PSG and Sleep Scoring
arousals, bipolar ECG
EVENTS
Sleep recordings were performed by using an unattended, portable in-home PSG over 1 night at the participant’s residence using the Safiro Sleep Monitoring System (Compumedics) for the MrOS sleep study. Trained staff members visited the participants to attach the sensors and electrodes and conduct overnight PSG. The setup included two central EEGs, bilateral electrooculograms, bilateral chin electromyogram, a bipolar ECG, nasal-oral thermistor, nasal flow via a pressure transducer and nasal cannula, abdominal and respiratory inductance plethysmography, finger pulse oximetry, bilateral leg movements by piezoelectric sensors, and body position.Research sleep technicians at a central sleep reading center, blinded to all other data, scored arousals along with other typical sleep events such as limb movements, respiratory events, and body movement, following the standard criteria defined by the American Academy of Sleep Medicine