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. 2018 Oct 2;19:194. doi: 10.1186/s12931-018-0894-9

Table 2.

The clinical characteristics of participants

Training set Validation set
Healthy controls Healthy OSAHS OSAHS with arterial hypertension P value Healthy controls Healthy OSAHS OSAHS with arterial hypertension P value
Number 5 5 5 15 15 15
Age, (years) 39.4 ± 1.69 40.6 ± 3.17 43.8 ± 1.24 0.37 43.4 ± 2.1 43 ± 2.51 43.6 ± 2.33 0.98
Male, n (%) 5 (100%) 5 (100%) 5 (100%) 11 (73.33%) 13 (86.67%) 12 (80%) 0.68
BMI, (kg/m2) 23.5 ± 0.42 25.18 ± 1.18 25.99 ± 0.38 0.1 24.57 ± 0.46 25.56 ± 0.38 26.16 ± 0.56 0.07
Smoker, n (%) 2 (40%) 1 (20%) 1 (20%) 0.76 1 (6%) 2 (13%) 4 (27%) 0.32
Drinker, n (%) 0 2 (40%) 2 (40%) 0.3 2 (13%) 4 (27%) 7 (47%) 0.13
Cholesterol, (mmol/L) 4.42 ± 0.27 4.4 ± 0.14 3.86 ± 0.4 0.35 4.37 ± 0.19 4.42 ± 0.16 4.4 ± 0.24 0.99
Triglycerides, (mmol/L) 0.87 ± 0.05 1.44 ± 0.15 1.56 ± 0.25 0.04 1.23 ± 0.13 1.5 ± 0.13 1.48 ± 0.12 0.25
HDL, (mmol/L) 1.36 ± 0.14 0.95 ± 0.09 0.86 ± 0.09 0.02 1.26 ± 0.06 1 ± 0.03 1.01 ± 0.05 <  0.001
LDL, (mmol/L) 2.55 ± 0.15 2.88 ± 0.14 2.32 ± 0.35 0.28 2.45 ± 0.17 2.8 ± 0.13 2.85 ± 0.2 0.2
Glucose, (mmol/L) 4.4 ± 0.1 4.54 ± 0.15 4.72 ± 0.14 0.25 4.78 ± 0.12 4.93 ± 0.12 4.92 (4.7,5.2) 0.35
HbA1c, (%) 5.34 ± 0.17 5.56 ± 0.13 5.52 ± 0.08 0.47 5.33 ± 0.11 5.55 ± 0.06 5.46 ± 0.09 0.21
ESS 3 ± 1.48 13.8 ± 2.71 13.6 ± 2.09 <  0.001 7.27 ± 1.43 13.13 ± 1.65 8.6 ± 1.21 <  0.05
AHI, (events/hour) 1.96 ± 0.52 39.27 ± 6.14 45.27 ± 8.2 <  0.001 4.52 ± 0.56 47.44 ± 4.92 43.46 ± 5.25 < 0.001
Mean SaO2, % 97 (96,97) 92.8 ± 1.59 93.8 ± 0.66 < 0.05 96 (95.97) 92.47 ± 0.97 94 ± 0.5 <  0.001
Minimum SaO2, % 92.6 ± 1.08 69.4 ± 3.04 74.6 ± 4.61 < 0.001 90.4 ± 0.58 74 (60,82) 72.87 ± 2.02 <  0.001

OSAHS Obstructive sleep apnea hypopnea syndrome, BMI Body mass index, AHI Apnea hypopnea index, SaO2 Oxygen saturation, ESS Epworth Sleepiness Scale, HDL High density lipoprotein, LDL Low density lipoprotein, HbA1c Glycosylated hemoglobin