Table 2-Correlation of CPET and PFT variables

	COPD/CAD		COPDnoCAD
	Peak VO2	VE/VCO2 nadir	Peak VO2	VE/VCO2 nadir
FEV1	0.519(<0.001*)	0.423(0.002*)	0.673(<0.001*)	0.203(0.142)
FVC	0.469(<0.001*)	0.157(0.270)	0.424(0.001*)	0.177(0.201)
DLCO	0.404(0.002*)	-0.402(0.003*)	0.267(0.051)	-0.131(0.345)

Data are presented as R(p value) *=Significant correlation