[Retracted] Nursing Research on Patients with Chronic Obstructive Pulmonary Disease and Respiratory Failure Based on Big Data

Table 1

Comparison of symptoms before and after intervention (CAT).

Item	Intervention	CG	EG	T
CAT	Before	12.30 ± 4.11	12.94 ± 4.15	−0.68	0.57
	After	10.87 ± 5.67	9.18 ± 6.33	1.26	0.23