Matrix Metalloproteinase-9 Is a Predictive Factor for Systematic Hypertension and Heart Dysfunction in Patients with Obstructive Sleep Apnea Syndrome

Table 3

Characteristics of OSAS patients with or without hypertension.

	Without hypertension	With hypertension
Cases,	35	12
Age, year
Male/Female,		10/2
BMI, kg/m^2
Neck Circumference, cm
Waist circumference, cm
AHI, events/h
ODI
ESS
Lowest SpO2, %
Mean SpO2, %
Time of SpO2 < 90%, min
Heart rate

Data are mean ± SD; All , not significant (Student’s t-test); BMI: body mass index; AHI: apnea/hypopnea index; ODI: oxygen desaturation index; ESS: Epworth sleepiness scale; SpO₂: blood oxygen saturation.