Evidence-Based Complementary and Alternative Medicine

Research Article

[Retracted] Analysis of Influencing Factors for Exercise Ventilation Efficiency of COPD Patients

Table 4

Correlation of EqCO₂ and key variables of pulmonary function.


		FEV1%	FEV1/FVC %	DLCO%	DLCO/VA%	RV/TLC

EqCO₂rest	Pearson correlation	−0.277	−0.311	−0.408	−0.390	0.289
	-value	0.024	0.011	0.001	0.002	0.023
	n	66	66	63	63	62

EqCO₂at	Pearson correlation	−0.224	−0.287	−0.462	−0.392	0.258
	-value	0.070	0.020	0.000	0.002	0.043
	n	66	66	63	63	62

EqCO₂max	Pearson correlation	−0.024	−0.086	−0.285	−0.245	0.095
	-value	0.837	0.468	0.017	0.041	0.436
	n	73	73	70	70	69

significant difference, < 0.05.