Table 2. t test for equality of Means.

Variable	Significance (2 tailed)
FVC%	0.831
FEV1%	0.544
PEF%	0.408
Age	0.595
Lymphocytes	0.906
Monocytes	0.82
Total cell	0.138
WBC	0.311
Protein concentration	0.034
VEGF concentration in BALF	0.290