变量	0 N = 501	1 N = 631	p-value2
FVC	2.6 ± 0.7	3.0 ± 0.8	0.006
FEV1	2.1 ± 0.6	2.3 ± 0.6	0.014
DLCO_SB	2.8 ± 1.2	3.3 ± 1.2	0.036
DLCO_VA	0.7 ± 0.2	0.8 ± 0.2	0.330
CPI	53.8 ± 13.2	49.7 ± 12.1	0.095
1 Mean ± SD
2 Welch Two Sample t-test; Wilcoxon rank sum test