Table 1.

Demographic parameters of examined population.

Group according to sleep apnea severity	Examined	Controls	Total	Significance
	(N = 68)	(N = 76)	(N = 144)
Parameter
Age (years ± SD)	47.88 ± 6.07	47.62 ± 6.97	46.94 ± 9.00	NS
Gender (male/female)	58/10	38/38	96/48	p < 0.001
Education level (grammar/high school/university)	3/7/12	25/33/18	43/70/31	NS
Body mass index (BMI, kg/m2)	35.34 ± 7.31	34.95 ± 8.27	31.90 ± 6.61	F = 807.33, DF = 3.140, p < 0.001
Leptin (ng/mL) m/f	11.36 ± 1.97 22.78 ± 3.28	4.39 ± 2.17 11.44 ± 3.23	10.39 ± 2.53 14.55 ± 3.11	F = 5.66, DF = 3.140, p < 0.001
Adiponectin (ng/mL) m/f	8.06 ± 0.97 11.14 ± 2.03	8.8 ± 1.44 13.71 ± 3.63	8.19 ± 2.44 11.43 ± 3.69	NS
Glucose (mmol/l)	5.31 ± 0.65	5.75 ± 1.55	5.52 ± 1.28	NS
C reactive protein (mg/l, mean ± SE)	3.86 ± 1.27	3.74 ± 0.39	3.39 ± 0.25	NS
Cholesterol (mmol/l, mean ± SD)	5.19 ± 0.63	5.74 ± 1.18	5.57 ± 1.11	NS
HDL (mmol/l, mean ± SE)	0.95 ± 0.04	1.37 ± 0.07	1.18 ± 0.04	F = 8.94, DF = 3.140, p < 0.001
LDL (mmol/l, mean ± SE)	3.23 ± 0.17	3.27 ± 0.12	3.44 ± 0.08	F = 2.76, DF = 3.140, p < 0.05
Triglycerides (mmol/l, mean ± SE)	2.68 ± 0.35	1.86 ± 0.13	2.24 ± 0.12	F = 7.64, DF = 3.140, p = 0.009
Cholesterol/HDL ratio (mean ± SE)	6.02 ± 0.33	4.64 ± 0.18	5.27 ± 0.18	F = 8.035, DF = 3.140, p < 0.001
Triglycerides/HDL ratio	3.32 ± 0.48	1.62 ± 0.15	2.41 ± 0.19	F = 7.71, DF = 3.140, p < 0.0001
AIP	0.52	0.21	0.38	F = 8.01, DF = 3.140, p < 0.001
HDL/LDL ratio (mean ± SE)	0.32 ± 0.03	0.43 ± 0.04	0.38 ± 0.02	NS
AHI per hour (mean ± SE)	12.23 ± 5.49	2.95 ± 0.12	12.16 ± 1.31	F = 29.44, DF = 3>140, p < 0.001
ODI per hour (mean ± SE)	14.35 ± 4.51	2.78 ± 0.13	11.08 ± 1.24	F = 25.64, DF = 3.140, p < 0.001
Total brain volume (cm3, mean ± SE)	1441.19 ± 32.31	1403.37 ± 18.85	1398.96 ± 13.16	NS
MoCA score (mean ± SD)	24.23 ± 3.14	25.53 ± 3.20	25.28 ± 3.04	F = 2.72, DF = 3.140, p < 0.05

NS: not significant.