[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 3

Changes in blood gas indexes before and after treatment.

Group	n	pH
		T0	T1	T2
Control group	48	7.23 ± 0.04	7.29 ± 0.03	7.38 ± 0.05ab
Study group	48	7.23 ± 0.05	7.30 ± 0.03	7.37 ± 0.05ab
T		−0.169	−1.118	1.393
		0.866	0.266	0.167
		PaCO2 (mmHg)
		T0	T1	T2
Control group	48	65.10 ± 3.32	63.42 ± 4.06	55.46 ± 3.90ab
Study group	48	64.90 ± 3.50	61.36 ± 3.88a	53.39 ± 3.48ab
T		0.297	−2.533	−2.756
		0.767	0.013	0.007
		PaO2 (mmHg)
		T0	T1	T2
Control group	48	64.24 ± 3.28	71.86 ± 3.47a	76.10 ± 3.94ab
Study group	48	65.34 ± 3.79	74.30 ± 3.70a	80.65 ± 4.22ab
T		−1.520	3.344	5.465
		0.132	0.001	＜ 0.001