Table 2.

Summary of TF and PBF

	1 ‐ V air (TF)	F (mL/min/cm3)	F corr (mL/min/cm3)	$F_{{\mathit{\text{corr}}}^{\text{'}}}$ (mL/min/cm3)
Mean	0.30±0.06	1.4±0.3	5.0±0.6a	5.3 ±0.6a
Skewness	0.6±0.3	1.2±0.5	0.9±0.4a	0.9±0.4a
Kurtosis	2.5±0.5	6.5±2.6	4.3±1.4a	4.6±1.6a

^aThe TF-corrected values differed significantly from those without TF correction (Mann–Whitney U test; P < 0.05)