. 2011 Nov 10;3(6):279–284. doi: 10.4021/jocmr697w

Table 2. Lung Function Values: Before (Pre) and After (Post) PEP and HFCC Treatments .

Device	FEV₁		FEF_25-75 (%)		FVC (%)		SpO₂ (%)
	(% predicted)		FEF_25-75 (%)		FVC (%)		SpO₂ (%)
	pre	post	pre	post	pre	post	pre	post
HFCC	67 ± 17	66 ± 17	34 ± 21	33 ± 21	88 ± 17	87 ± 16	97 ± 1.6	97 ± 1.2
PEP	67 ± 16	67 ± 16	34 ± 20	34 ± 19	88 ± 15	87 ± 15	98 ± 1.0	97 ± 1.2*

FEV₁: forced expiratory volume in 1 second; FEF_25-75: forced expiratory flow 25 - 75%; FVC, forced vital capacity. *P < 0.001. No statistically significant difference was found in spirometric values before and after both treatments. A statistically significant decrease in SpO₂ values was found after PEP treatment.