[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 6

Comparison of medical expenses and hospitalization times between groups ( ± s).

Group	n	Number of hospitalizations (second)	Medical expense (ten thousand yuan)
Traditional group	68	3.58 ± 0.23	4.89 ± 0.56
Cardiopulmonary rehabilitation group	68	2.12 ± 0.18^#	2.63 ± 0.42^#

^# < 0.05 represents a comparison with a traditional group.