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Table 8 Predictors of NREM dominance

From: Distinct polysomnographic and ECG-spectrographic phenotypes embedded within obstructive sleep apnea

Phenotype NREM dominance (OR), p
PSG SF—SE 1.16 [CI: 0.72–1.86], 0.527
PSG SF—N1 1.72 [CI: 1.01–2.93], 0.046*
PSG SF—WASO 0.90 [CI: 0.61–1.34], 0.614
ECG SF 1.53 [CI: 1.04–2.25], 0.029*
PSG SC—SE 0.92 [CI: 0.58–1.50], 0.758
PSG SC—N1 0.91 [CI: 0.61–1.35], 0.643
PSG SC—WASO 0.81 [CI: 0.47–1.43], 0.483
ECG SC 0.44 [CI: 0.29–0.67], <0.001*
Central sleep apnea + 1.96 [CI: 0.78–4.91], 0.152
e-LFCNB + 1.56 [CI: 1.07-2.29], 0.022
  1. Adjusted for age, gender, body mass index, ethnicity, respiratory disturbance index
  2. CI confidence intervals; NREM non-rapid eye movement sleep PSG: polysomnographic; SE sleep efficiency; N1 NREM stage 1; WASO wake after sleep onset; ECG electrocardiogram-based analysis; SC sleep consolidation; SF sleep fragmentation; e-LFC NB elevated-low frequency coupling narrow band
  3. * Statistically significant