Home Positive Airway Pressure
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.
Lab studies
| Channel | EDF Label | Input 1 | Input 2 | Sampling rate (Hz) | Hardware filters (Hz) | Sensor type |
|---|---|---|---|---|---|---|
| REF | - | Fpz | - | 200 | - | Gold cup |
| Ground | - | - | - | 200 | - | Gold cup |
| Left EOG | E1 | E1 | Fpz | 200 | - | Gold cup or Ag/AgCl patch |
| Right EOG | E2 | E2 | Fpz | 200 | - | Gold cup or Ag/AgCl patch |
| Left Frontal EEG | F3 | F3 | Fpz | 200 | - | Gold cup |
| Right Frontal EEG | F4 | F4 | Fpz | 200 | - | Gold cup |
| Left Central EEG | C3 | C3 | Fpz | 200 | - | Gold cup |
| Right Central EEG | C4 | C4 | Fpz | 200 | - | Gold cup |
| Left Occipital EEG | O1 | O1 | Fpz | 200 | - | Gold cup |
| Right Occipital EEG | O2 | O2 | Fpz | 200 | - | Gold cup |
| Left Mastoid EEG | M1 | M1 | Fpz | 200 | - | Gold cup |
| Right Mastoid EEG | M2 | M2 | Fpz | 200 | - | Gold cup |
| ECG1 | ECG1 | ECG1 | Fpz | 250 | - | Gold cup or Ag/AgCl patch |
| ECG2 | ECG2 | ECG2 | Fpz | 250 | - | Gold cup or Ag/AgCl patch |
| ECG3 | ECG3 | ECG3 | Fpz | 250 | - | Gold cup or Ag/AgCl patch |
| Center Chin EMG | Cchin | Cchin | Fpz | 200 | - | Gold cup or Ag/AgCl patch |
| Left Submentalis EMG | Lchin | Lchin | Fpz | 200 | - | Gold cup or Ag/AgCl patch |
| Right Submentalis EMG | Rchin | Rchin | Fpz | 200 | - | Gold cup or Ag/AgCl patch |
| Pulse | Pulse | Pulse | - | - | Variable by site | |
| Plethysmography | Pleth | Pleth | - | 10 or highest allowable rate | - | Variable by site |
| Left Leg EMG | LLeg | LLeg | Fpz | 200 | - | Gold cup or Ag/AgCl patch |
| Right Leg EMG | RLeg | RLeg | Fpz | 200 | - | Gold cup or Ag/AgCl patch |
| Snore | Snore (not required) | Snore | - | 200 | - | - |
| Airflow | Airflow | Airflow | - | 32 | - | Variable by site |
| Nasal Pressure | CannulaFlow | CannulaFlow | - | 128 | - | Variable by site |
| Sum | Sum | Sum | - | 32 | - | Variable by site |
| Thorax | Chest | Chest | - | 32 | - | Variable by site |
| Abdomen | Abd | Abd | - | 32 | - | Variable by site |
| XFlow | XFlow (not always present) | Xflow | - | 32 | - | Derived from Embla XactTrace belt |
| SpO2 | SAO2 | SAO2 | - | 10 or highest allowable rate | - | Variable by site |
| Leak | Leak | Leak | - | 1 | - | Variable by site |
| Position | Position | Position | - | 10-Jan | - | Variable by site |
| CPAP Flow | MaskFlow | MaskFlow | - | 32 | - | Variable by site |
Note: All EOG, EEG signals were to be collected to reference. This was not done for all clusterids, see known issues list for more details. When possible, Chin EMG, Leg EMG and ECG signals will be collected to reference. This was not done for all clusterids, see known issues list for more details.
Signals will be collected unfiltered (at hardware settings). This may vary according to the acquisition system.
Not all clusterids meet the minimum sampling rates, see known issues list for more details.
Home studies
| Channel | Minimum Sampling Rate (Hz) (may be exceeded) |
|---|---|
| Nasal | 20 |
| EKG | 200 |
| Thermistor | 10 |
| Thorax | 10 |
| Abdomen | 10 |
| Gravity X | 10 |
| Gravity Y | 10 |
| Battery | 2 |
| Snore | 10 |
| SpO2 | 3 |
| SpO2-BB | 3 |
| Pulse | 3 |
| RD-Pleth | 75 |
| SpO2-quality | 3 |
| RD-Quality | 75 |
| Flow | 20 |
| Activity | 10 |
| Elevation | 10 |
| Position | 10 |
| Phase | 10 |
| RMI | 10 |
| RR | 1 |
| XSum | 10 |
| Tidal Volume | 10 |
| XFlow_PDS | 10 |
| Flattening | 50 |
No hardware filters were applied.