Clinical Study

Effect of Continuous Positive Airway Pressure on Airway Inflammation and Oxidative Stress in Patients with Obstructive Sleep Apnea

Table 1

Demographic data in OSA patients pre- and post-CPAP therapy and non-OSA controls.

Non-OSA ()Pre-CPAP ()Post-CPAP ()

Age (years)52.5 ± 12.353.1 ± 12.4
Gender (M/F)10/310/310/3
BMI (kg/m2)23.3 ± 1.528.4 ± 3.5##28.1 ± 3.8
Neck circumference (cm)36.9 ± 3.441.4 ± 2.6##41.5 ± 3.4
Waist circumference (cm)83.2 ± 5.7102.7 ± 7.5###101.8 ± 7.3
Hip circumference (cm)92.8 ± 2.9107.5 ± 9.4###107.6 ± 8.7
Waist-to-hip ratio0.90 ± 0.050.96 ± 0.05###0.95 ± 0.04
Mean oxygen saturation (%)98.2 ± 0.494.2 ± 4.7#96.8 ± 1.3
Epworth sleepiness scale2.9 ± 1.29.5 ± 2.9###6.2 ± 1.8
Heart rate at rest (/min)77 ± 1077 ± 1172 ± 8
Systolic BP (mm Hg)123 ± 15132 ± 12124 ± 11
Diastolic BP (mm Hg)75 ± 1078 ± 674 ± 7
Mean arterial pressure (mm Hg)90.9 ± 11.096.1 ± 7.390.6 ± 7.5
Controlled hypertension ()099
Normotension ()1344

Data are expressed as mean ± SD. OSA: obstructive sleep apnea; CPAP: continuous positive airway pressure; BMI: body mass index; BP: blood pressure. , , and pre- versus post-CPAP therapy; , and non-OSA versus pre-CPAP therapy.