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

Table 2

Polysomnographic data prior to CPAP therapy in OSA patients.

	OSA patients ()
Apnea index (/h)	5.7 ± 3.8
Hypopnea index (/h)	10.2 ± 6.0
Apnea hypopnea index (/h)	15.9 ± 6.6 (0 m), 4.1 ± 2.1 (3 m)
Sleep efficiency (%)	78.9 ± 13.7
Total sleep time (min)	315.0 ± 66.0
Time in bed (min)	401.0 ± 86.5
Lowest oxygen saturation (%)	64.9 ± 11.4
Arousal index (/h)	36.8 ± 9.9
CPAP average nightly use (h)	6.4 ± 0.9
CPAP average weekly use (day)	5.4 ± 0.4
CPAP pressure (cm H2O)	8.0 ± 0.5 (0 m), 11.5 ± 1.5 (3 m)

The data for apnea hypopnea index and CPAP pressure represent measurements pre- and post-CPAP therapy. OSA: obstructive sleep apnea; h: hour; CPAP: continuous positive airway pressure; 0 m: before CPAP; 3 m: 3 months after CPAP. pre- versus post-CPAP therapy.