Table 1 Comparison of clinical and biochemical characteristics in patients with or without obstructive sleep apnoea

Age (years)

47.3 ± 1.7

51.0 ± 2.0

0.17

BMI (kg/m²)

30.9 ± 1.1

35.8 ± 1.5

0.01

Waist (cm)

102.1 ± 2.4

114.4 ± 3.0

0.02

Neck (cm)

40.7 ± 0.7

42.7 ± 1.1

0.12

Smoking (%)

17.7

29.7

0.12

Epsworth score

9.51 ± 0.7

13.7 ± 0.9

<0.001

Systolic BP (mmHg)

134.2 ± 2.8

147.1 ± 3.8

0.009

Diastolic BP (mmHg)

82.0 ± 1.7

82.8 ± 2.3

0.784

Total cholesterol (mmol/l)

5.3 ± 0.2

5.2 ± 0.2

0.770

LDL-cholesterol (mmol/l)

3.2 ± 0.2

3.0 ± 0.2

0.308

HDL-cholesterol (mmol/L)

1.3 ± 0.05

1.2± 0.05

0.118

Triglyceride (mmol/l)

1.7 ± 0.2

2.3 ± 0.2

0.010

Glucose (mmol/L)

5.1 ± 0.1

5.9 ± 0.3

0.005

Insulin (pmol/L)

13.7 ± 2.0

21.5 ± 3.3

0.049

HOMA IR

3.1 ± 0.4

6.4 ± 1.3

0.019

Microalbuminuria (%)

6.7

10.8

N/A

Metabolic syndrome (%)

37

73

<0.001