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Table 3 Polysomnographic characteristics for all cardiometabolic comorbidities

From: Cardiometabolic comorbidities in obstructive sleep apnea patients are related to disease severity, nocturnal hypoxemia, and decreased sleep quality

  Diabetes
n = 386
No diabetes
n = 1331
p value CVCo
n = 671
No CVCo n = 1046 p value Dyslipidemia n = 453 No dyslipidemia n = 1253 p value
AHI 45.82 ± 25.77 42.23 ± 25.60 0.0156 43.58 ± 24.59 42.50 ± 26.85 NS 44.12 ± 24.31 42.66 ± 26.18 NS
AHI/REM 50.01 ± 27.29 48.38 ± 26.99 NS 49.80 ± 26.77 47.61 ± 27.32 NS 47.53 ± 26.22 49.19 ± 27.34 NS
AHI/NREM 41.73 ± 26.26 38.46 ± 26.87 0.0342 39.40 ± 25.48 39.03 ± 28.13 NS 40.39 ± 25.19 38.79 ± 27.33 NS
SL (min) 70.01 ± 62.26 73.20 ± 62.06 NS 70.05 ± 59.99 75.20 ± 64.20 NS 68.20 ± 60.82 74.11 ± 62.48 NS
SE (%) 63.61 ± 15.05 67.42 ± 14.57 0.0001 64.89 ± 14.94 68.30 ± 14.45 0.0001 64.65 ± 14.65 67.21 ± 14.80 0.0022
TST (min) 327.12 ± 78.35 343.64 ± 76.60 0.0002 331.59 ± 79.02 348.56 ± 74.81 0.0001 330.79 ± 79.06 343.04 ± 76.64 0.0052
N1 (%) 4.55 ± 4.56 4.13 ± 3.62 NS 4.56 ± 4.27 3.90 ± 3.39 0.0156 4.92 ± 4.74 3.99 ± 3.48 <0.0001
N2 (%) 50.88 ± 16.37 50.36 ± 15.89 NS 50.61 ± 15.50 50.40 ± 16.50 NS 51.27 ± 15.81 50.22 ± 16.03 NS
N3 (%) 29.11 ± 17.19 28.67 ± 15.79 NS 28.80 ± 15.81 28.69 ± 16.41 NS 27.77 ± 16.28 29.10 ± 16.01 NS
REM (%) 15.52 ± 7.32 16.91 ± 6.88 0.0006 16.16 ± 7.29 17.04 ± 6.65 0.0091 16.17 ± 7.34 16.72 ± 7.34 NS
ARI 39.91 ± 18.34 37.13 ± 17.94 0.0007 37.91 ± 17.04 37.67 ± 19.14 NS 39.39 ± 17.55 37.20 ± 17.55 0.0356
Mean duration
AH REM (sec)
25.59 ± 11.00 26.36 ± 9.69 NS 26.46 ± 10.41 25.89 ± 9.56 NS 27.09 ± 11.68 25.83 ± 11.68 0.0429
Mean duration
AH NREM (sec)
21.90 ± 6.02 22.41 ± 5.96 NS 22.32 ± 5.73 22.24 ± 6.24 NS 22.63 ± 6.17 22.15 ± 6.17 NS
PLM 6.31 ± 22.47 5.63 ± 16.80 NS 6.23 ± 18.97 5.26 ± 17.33 NS 5.87 ± 19.18 5.73 ± 17.83 NS
ODI 57.42 ± 32.30 45.37 ± 30.60 <0.0001 50.44 ± 30.42 45.79 ± 32.36 0.0357 50.28 ± 31.87 47.60 ± 31.87 NS
Mean 02 saturation
TST (%)
92.81 ± 30.94 92.18 ± 2.67 NS 92.27 ± 20.47 92.35 ± 2.75 NS 91.54 ± 2.88 92.59 ± 2.88 NS
02 desaturation
< 90% (min)
102.33 ± 115.04 74.44 ± 99.13 <0.0001 91.67 ± 108.71 69.54 ± 97.24 <0.0001 96.06 ± 113.31 75.47 ± 113.31 0.0005
Minimal 02
saturation (%)
75.14 ± 10.42 77.58 ± 9.41 <0.0001 76.43 ± 9.64 77.62 ± 9.83 0.0203 76.20 ± 9.78 77.28 ± 9.78 NS
Mean HR (beats/min) 70.78 ± 10.36 68.10 ± 9.95 <0.0001 67.88 ± 10.25 69.63 ± 9.85 0.0003 68.20 ± 10.20 69.91 ± 10.20 NS
  1. AHI Apnea-hypopnea index, AH Apnea-hypopnea, REM Rapid eye movement sleep, NREM Non-rapid eye movement sleep, CVCo Cardiovascular Comorbidities, SL Sleep latency, TST Total sleep time, SE Sleep efficiency, N1 Sleep stage 1, N2 Sleep stage 2, N3 Sleep stage 3, PLM Periodic leg movements index, ODI Oxygen desaturation index, ARI Arousal index, 02 Oxygen, HR: heart rhythm. All the results are expressed as Mean + SD. NS: not significant