[Retracted] Effects of Cardiopulmonary Rehabilitation Promotion Mode Intervention Combined with Oxygen Therapy on Cardiopulmonary Function and Blood Gas Analysis Indexes of COPD Patients with Cor Pulmonale

Table 4

Comparison of cat questionnaire, MMRC questionnaire, and 6MWD between and within groups ( ± s).

Index	Time	Traditional group (n = 68)	Cardiopulmonary rehabilitation group (n = 68)
		n = 68	n = 68
Cat questionnaire (branch)	Before treatment	14.85 ± 2.89	14.91 ± 2.76
	After treatment	12.21 ± 2.03	9.97 ± 1.74^#
MMRC questionnaire (branch)	Before treatment	3.23 ± 0.41	3.21 ± 0.45
	After treatment	2.47 ± 0.29	2.01 ± 0.22^#
6MWD (m)	Before treatment	235.36 ± 34.25	229.52 ± 38.41
	After treatment	308.52 ± 42.17	345.36 ± 45.17^#

 < 0.05 indicates a comparison with that before treatment; # < 0.05 represents a comparison with a traditional group.