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Multi-Ethnic Study of Atherosclerosis

Montage and sampling rate information

The settings below represent the standards set at the beginning of the project. There may be a small proportion of studies and signals that do not match these standards exactly. Please review the settings at the individual sleep study level as you proceed with any analyses.

Channel EDF Label Input 1 Input 2 Sampling rate (Hz) Hardware filters (Hz) Sensor type
ECG EKG ECG - 256 - Ag/AgCl patch
Left EOG E1 EOG-L Fpz 256 Low Pass 100 Gold cup electrode
Right EOG E2 EOG-R Fpz 256 Low Pass 100 Gold cup electrode
EMG EMG EMG - 256 Low Pass 100 Gold cup electrode
Linked EEG EEG1 Fz Cz 256 Low Pass 100 Gold cup electrode
Linked EEG EEG2 Cz Oz 256 Low Pass 100 Gold cup electrode
Linked EEG EEG3 C4 M1 256 Low Pass 100 Gold cup electrode
Nasal Pressure Flow Flow - 32 Low Pass 10 Nasal Cannula
Snore Snore Snore - 32 - Nasal Cannula (vibratory)
Thorax Thor Thor - 32 Low Pass 10 Compumedics Inductive Respiratory Band
Abdomen Abdo Abdo - 32 Low Pass 10 Compumedics Inductive Respiratory Band
Linked Left & Right Leg EMG Leg Lleg Rleg 32 Low Pass 10 Compumedics Limb Movement Sensor (Piezo)
Thermistor Aux_AC Aux_AC - 32 - Salter ThermiSense 5700
Position Pos Pos - 32 Low Pass 10 Built-in Device Sensor
Plethysmography Pleth Pleth - 256 - Nonin 8000 sensor
Oximetry Status OxStatus OxStatus - 1 - Nonin 8000 sensor
SpO2 SpO2 SpO2 - 1 - Nonin 8000 sensor
Heart Rate HR HR - 1 - Nonin 8000 sensor
Derived Heart Rate DHR DHR - - - Derived from EK
REF - Fpz - - - -

Notes

  • The meaning of the position signal values are as follows:
    • 0, Right
    • 1, Back
    • 2, Left
    • 3, Prone
    • 4, Upright
National Sleep Research Resource
Multi-Ethnic Study of Atherosclerosis