Table 1 Phenotype Definitions
From: Distinct polysomnographic and ECG-spectrographic phenotypes embedded within obstructive sleep apnea
Phenotype | Phenotype criteria |
|---|---|
Polysomnogram chemoreflex | Central apnea index ≥ 5/h of sleep |
Spectrogram chemoreflex | Presence of narrow band elevated low frequency coupling |
Polysomnogram fragmentation—SE | Sleep efficiency ≤ 70% total sleep time |
Polysomnogram fragmentation—N1 | NREM N1 ≥ 30% total sleep time |
Polysomnogram fragmentation—WASO | Wake after sleep onset ≥ 60 min |
Spectrogram fragmentation | High frequency coupling ≤ 30% total sleep time |
Polysomnogram consolidation—SE | Sleep efficiency ≥ 90% total sleep time |
Polysomnogram consolidation—N1 | NREM N1 ≤ 10% total sleep time |
Polysomnogram consolidation—WASO | Wake after sleep onset ≤ 30 min |
Spectrogram consolidation | High frequency coupling ≥ 50% total sleep time |