Related Variables
| pm233 |
Physical Measurements (SHHS2): Date of ECG measurement
F. ECG 33. Date of measurement: |
Measurements/Administrative | |
| pm232 |
ECG Position (SHHS2)
32. ECG done in: |
Measurements/ECG | |
| ecgdt |
Date collected: ECG (SHHS1)
Date of ECG (days from index date) |
Measurements/ECG/Administrative | |
| hrdur |
PSG Quality Assessment (SHHS2): hours of usable HR
Number of hours of usable signal from heart rate (ECG) leads as assessed by scorer. |
Measurements/PSG/Signal Quality | |
| hrqual |
PSG Quality Assessment (SHHS1): Signal Quality (hr)
Overall quality of signal from heart rate (ECG) leads as assessed by scorer. |
Measurements/PSG/Signal Quality | |
| quhr |
PSG Quality Assessment (SHHS2): Signal Quality (hr)
Overall quality of signal from heart rate (ECG) leads during sleep as assessed by scorer. |
Measurements/PSG/Signal Quality | |
| ecgfi51 |
PSG Signal Verification (SHHS1): Impedence check 2: ECG
Final impedency check of ECG (kohms) |
Questionnaires/SHHS1/PSG Signal Verification | |
| ecgfl51 |
PSG Signal Verification (SHHS1): Fuzzy line on ECG
Fuzzy line observed on ECG signal |
Questionnaires/SHHS1/PSG Signal Verification | |
| ecgfs51 |
PSG Signal Verification (SHHS1): Impedence check 1: ECG
First impedency check of ECG (kohms) |
Questionnaires/SHHS1/PSG Signal Verification | |
| ecggd51 |
PSG Signal Verification (SHHS1): Good deflection on ECG
Good deflection observed on ECG signal |
Questionnaires/SHHS1/PSG Signal Verification | |
| ecgplc51 | PSG Signal Verification (SHHS1): ECG placement | Questionnaires/SHHS1/PSG Signal Verification | |
| ecgtr51 |
PSG Signal Verification (SHHS1): Number of sensor replacements: ECG
Number of times ECG electrode replaced (0 if first check = final check) |
Questionnaires/SHHS1/PSG Signal Verification | |
| montag51 | PSG Signal Verification (SHHS1): Montage used for ECG | Questionnaires/SHHS1/PSG Signal Verification |