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Table 2 Polysomnographic findings of patient and control groups

From: Factors affecting executive functions in obstructive sleep apnea syndrome and volumetric changes in the prefrontal cortex

  Total (n = 43) Patient (n = 28) Control (n = 15) pa
AHI (/h)
 Min–max (median) 0.50–93.10 (16.5) 6.50–93.10 (30.8) 0.50–4.30 (2.3) 0.001**
NREM1 (%)
 Min–max (median) 1.80–25.10 (5.6) 1.80–13.70 (5.05) 2.30–25.10 (6.3) 0.198
NREM2 (%)
 Min–max (median) 2.70–70 (22) 4.20–70 (20.05) 2.70–52.70 (35.4) 0.386
NREM3 (%)
 Min–max (median) 13.70–81.20 (49.1) 15.10–74.70 (49.7) 13.70–81.20 (37) 0.241
REM (%)
 Min–max (median) 0.90–24.30 (13.4) 4.30–24.30 (12.8) 0.90–23.80 (15.7) 0.516
Time SO2 < 90% (%)
 Min–max (median) 0–29.60 (0.2) 0–29.60 (0.9) 0–0.40 (0) 0.001**
Min SO2 (%)
 Min–max (median) 61–95 (85) 61–89 (83) 85–95 (93) 0.001**
  1. AHI Apnea/Hypopnea Index, REM rapid eye movement, NREM non-rapid eye movement
  2. ** p < 0.01
  3. aMann–Whitney U-test