Table 1.

Demographic and lung function test descriptions from progressors and non-progressors whose baseline blood and BAL protein measurements were used in creating models based on the combination of blood and BAL proteins.

	Non-progressor (N = 20)	Progressor (N = 30)	p value
Age	62.43	65.36	0.2109
Sex (male)	16 (80%)	19 (63.3%)	0.2157
Number never smokers	6 (30%)	11 (36.7%)	0.6343
Number former smokers	13 (65%)	19 (63.3%)	0.9067
Number current smokers	1 (5%)	0	0.2243
FVC% predicted	66.88%	70.94%	0.4153
DLCO% predicted	45.78%	47.74%	0.626