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Table 9 Predictors of Primary Phenotypes

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

Phenotype CAI (OR), p e-LFCNB (OR), p ECG SF (OR), p
PSG SF—SE 1.03 [CI: 0.41–2.62], 0.939 0.88 [CI: 0.56–1.37], 0.566 1.37 [CI: 0.90–1.12], 0.144
PSG SF—N1 1.70 [CI:0.71–4.09], 0.228 2.97 [CI:1.86–4.74], < 0.001* 1.95 [CI:1.22–3.13], 0.005*
PSG SF—WASO 1.07 [CI:0.46–2.48], 0.882 0.99 [CI:0.69–1.43], 0.975 1.34 [CI:0.93–1.93], 0.111
ECG SF 3.69 [CI:1.58–8.64], 0.003* 2.06 [CI:1.47–2.93], < 0.001*  
PSG SC—SE 0.51 [CI:0.14–1.78], 0.288 0.89 [CI:0.57–1.38], 0.593 0.72 [CI:0.46–1.13], 0.155
PSG SC—N1 0.26 [CI:0.08–0.87], 0.029* 0.64 [CI:0.44–0.92], 0.018 0.61 [CI:0.42–0.88], 0.009*
PSG SC—WASO 0.25 [CI:0.03–1.91], 0.182 1.01 [CI:0.61–1.69], 0.955 0.57 [CI:0.33–0.97], 0.040*
ECG SC 0.31 [CI:0.09–1.04], 0.057 0.28 [CI:0.18–0.43], < 0.001*  
  1. CI confidence intervals; PSG polysomnogram; ECG electrocardiogram; N1 NREM stage 1; SF sleep fragmentation; WASO wake after sleep onset; SC sleep consolidation; SE sleep efficiency; CAI central apnea index; e-LFC NB elevated-low frequency coupling, narrow band
  2. * Statistically significant