Table 2. Risk factors for cardiovascular diseases in patients with obstructive sleep apnea syndrome.

	p-value	Odds ratio	95% CI
Sex	0.93	1.058	0.258-4.338
Age (years)	0.013	1.085	1.017-1.157
BMI (kg/m²)	0.081	1.11	0.987-1.249
Smoking	0.598	0.632	0.115-3.476
Diabetes mellitus	0.633	1.386	0.363-5.29
Hyperlipidemia	0.711	1.282	0.344-4.779
RDW (%)	<0.001	3.095	1.69-5.66
CRP (mg/L)	0.046	1.136	1.002-1.287

BMI: body mass index; CRP: C-reactive protein; CI: confidence interval; RDW: red cell distribution width; N: number of patients.