Table 3 ECG-spectrogram features in the APPLES
From: Distinct polysomnographic and ECG-spectrographic phenotypes embedded within obstructive sleep apnea
ECG-spectrogram metrics | Mean ± SD (n = 671) |
|---|---|
High frequency coupling % TST | 38.9 ± 22.3 |
High frequency coupling duration (minutes) | 151.4 ± 92.7 |
Low frequency coupling % TST | 43 ± 20.2 |
Low frequency coupling duration (minutes) | 164.1 ± 82 |
Elevated low frequency coupling % TST | 20.8 ± 17.9 |
Elevated low frequency coupling duration (minutes) | 79.4 ± 69.3 |
Narrow band coupling % TST | 3.4 ± 8.1 |
Narrow band coupling duration (minutes) | 12.9 ± 31.4 |
Very low frequency coupling % TST | 16.1 ± 7.3 |
Very low frequency coupling duration (minutes) | 61 ± 28.2 |
CPC e-LFC index/hour of sleep | 20.6 ± 19.3 |
CPC e-LFC cycle time (seconds) | 30.4 ± 8.1 |
CPC LFC index/hour of sleep | 52.4 ± 24.9 |
CPC LFC cycle time (seconds) | 31 ± 8.4 |