Table 6.

Correlation of oscillometry with conventional PFTs

	AX	Fres	R5	X5	X5in	X5ex	XeE	XeI
%FVC	0.004	0.066	0.000	0.003	0.032	0.000	0.001	0.165
FVC	0.257	0.234	0.076	0.339	0.435	0.215	0.098	0.499
%FEV1	0.085	0.150	0.023	0.094	0.130	0.050	0.032	0.241
FEV1	0.352	0.291	0.132	0.435	0.506	0.305	0.184	0.491
%TLC	0.000	0.012	0.000	0.000	0.011	0.000	0.023	0.186
TLC	0.225	0.126	0.036	0.333	0.450	0.189	0.088	0.579
%DLCO	0.000	0.000	0.065	0.000	0.000	0.000	0.000	0.066
DLCO	0.152	0.074	0.033	0.239	0.360	0.116	0.012	0.285

Data are shown as the coefficient of determination, and R² was derived using polynomial with 2 degrees regression.

DLCO, diffusing capacity for carbon monoxide; FEV₁, forced expiratory volume in one second; FVC, forced vital capacity; PFT, pulmonary function test; TLC, total lung capacity.