Table 6.

Correlation between the initial pulmonary function and the percent improvement of pulmonary function.

	Initial FVCsup	Initial FVCsit	Initial PCF	%ΔFVCsup	%Δ FVCsit	%ΔPCF
%ΔFVCsup	−0.531**	−0.510**	−0.428**	1	0.795**	0.499**
%ΔFVCsit	−0.386**	−0.513**	−0.414**	0.795**	1	0.550**
%ΔPCF	−0.209*	−0.248*	−0.328**	0.499**	0.550**	1

Values are Pearson correlation coefficient r.

*P < 0.05, **P < 0.01.

FVC, forced vital capacity; FVCsup, FVC in supine position; FVCsit, FVC in sitting position; Δ, change.