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Childhood Adenotonsillectomy Trial

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 Channel Derivation Minimum Sampling Rate (Hz) (may be exceeded) Sensor Type
REF FPz 200 Gold cup electrode
Ground Cz 200 Gold cup electrode
E1 E1/FPz 200 Gold cup electrode or Ag/AgCl patch
E2 E2/FPz 200 Gold cup electrode or Ag/AgCl patch
F3 F3/M2 200 Gold cup electrode
F4 F4/M1 200 Gold cup electrode
C3 C3/M2 200 Gold cup electrode
C4 C4/M1 200 Gold cup electrode
T3 T3/M2 200 Gold cup electrode
T4 T4/M1 200 Gold cup electrode
O1 O1/M2 200 Gold cup electrode
O2 O2/M1 200 Gold cup electrode
M1 200 Gold cup electrode
M2 200 Gold cup electrode or Ag/AgCl patch
Lchin Lchin/Cchin 200 Gold cup electrode or Ag/AgCl patch
Rchin 200 Gold cup electrode or Ag/AgCl patch
Cchin Cchin/Lchin 200 Gold cup electrode or Ag/AgCl patch
ECG1 ECG1/ECG3 200 Gold cup electrode or Ag/AgCl patch
ECG2 200 Gold cup electrode or Ag/AgCl patch
ECG3 ECG3/ECG1 200 Gold cup electrode or Ag/AgCl patch
RLeg1 RLeg1/RLeg2 200 Gold cup electrode or Ag/AgCl patch
Rleg2 RLeg2/RLeg1 200 Gold cup electrode or Ag/AgCl patch
LLeg1 LLeg1/LLeg2 200 Gold cup electrode or Ag/AgCl patch
LLeg2 LLeg2/LLeg1 200 Gold cup electrode or Ag/AgCl patch
Airflow 32 Dymedix airflow with RERA-quality cable
Cannula Flow 128 Salter or Protech Cannula (Dual-end for NP & CO2)
Chest 32 Protech Z-Rip System
ABD 32 Protech Z-Rip System
SUM 32 Protech Z-Rip System
SpO2 10 or highest allowable rate Nonin 8000J (or comparable)
Pleth 10 or highest allowable rate Nonin 8000J (or comparable)
Position 1.0-10
Cap 32 Salter or Protech Cannual (Dual-end for NP & CO2)
EtCO2 15 Salter of Protech Cannual (Dual-end for NP & CO2)
Snore (Not obligate for CHAT) 200 Variable by site

Hardware filters : When possible, signals collected unfiltered at hardware settings. Hardware settings may be based on the acquisition system

For more information please refer to Standard Sensors and Placement and Standardized Recording Montage

National Sleep Research Resource
Childhood Adenotonsillectomy Trial