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

Table 3

FeNO and MDA levels before and after three months of CPAP therapy in OSA and in non-OSA patients.

	Non-OSA ()	Pre-CPAP ()	Post-CPAP ()
FeNO (ppb)	17.5 ± 5.9 (8.0–24.0)	25.9 ± 5.0^### (17.0–34.5)	17.0 ± 2.3 (12.5–21.5)
MDA (μmol/L)	2.1 ± 0.3 (1.4–2.4)	14.6 ± 7.8^### (7.0–35.8)	10.0 ± 6.4 (5.3–29.7)

Data are presented as mean ± SD. FeNO: fractional exhaled nitric oxide; MDA: malondialdehyde; ppb: parts per billion. and pre- versus post-CPAP therapy; non-OSA versus pre-OSA.