[Retracted] The Effects of Sequential Ventilation Therapy on Blood Gas Indexes, Pulmonary Function Indexes, Clinical Efficacy, and Safety in Patients with Severe Cor Pulmonale

Table 5

Comparison of clinical response rates.

Group	n	Significant curative effect	Effective	Invalid	Effective rate
Control group	48	18 (37.50)	19 (39.58)	11 (22.92)	37 (77.08)
Study group	48	29 (60.42)	11 (22.92)	8 (16.67)	40 (83.33)
x2		5.044	3.103	0.591	0.591
		0.025	0.078	0.442	0.442