Table 2. Factor analysis showing rotated component matrix^a.

	Factors
	1	2	3	4	5
TLC%p	0.27	0.93	0.17	−0.10	−0.10
FRC%p	−0.20	0.94	0.11	−0.13	−0.08
FRC/TLC	−0.68	0.65	0.10	−0.21	−0.07
RV%p	−0.07	0.89	−0.32	−0.13	−0.16
RV/TLC	−0.39	0.53	−0.67	−0.16	−0.14
IC%p	0.96	.011	0.08	0.09	−0.03
IC/TLC	0.67	−0.66	−0.10	0.21	0.04
IRV%p	0.94	0.07	0.10	0.01	−0.03
IRV/TLC	0.86	−0.19	0.03	−0.01	0.13
ERV%p	−0.18	0.22	0.91	−0.04	0.14
ERV/TLC	−0.24	0.02	0.91	−0.03	0.09
DLCO%p	0.07	−0.25	0.19	0.18	0.92
FVC%p	0.48	−0.09	0.76	0.12	−0.04
FEV1%p	0.37	−0.26	0.54	0.65	0.06
FEV1/FVC	−0.00	−0.22	−0.04	0.94	0.15
SVC%p	0.57	0.06	0.77	0.08	0.04

Notes.

For all abbreviations, please refer to Table 1. Extraction method: Principal component analysis. Rotation method: Varimax with Kaiser normalization.

^aRotation converged in 5 iterations.

Bolded number indicating the important variables (arbitrarily defined as value >0.85) in that factor, Italic number indicating the variables with moderate importance (arbitrarily defined as value > 0.50) in that factor.