[Retracted] An Analysis of the Effect of Noninvasive Positive Pressure Ventilation on Patients with Respiratory Failure Complicated by Diabetes Mellitus

Table 2

Pulmonary function indices (, ).

Group	FVC (L)		FEV1 (L)		FEV1/FVC		VCmax (L)		MVV (L/min)
	Before intervention (B.I)	After intervention (A.I)	B.I	A.I	B.I	A.I	B.I	A.I	B.I	A.I
Control group
Study group
	0.21	13.08	0.19	7.61	0.32	8.36	0.12	7.72	0.33	11.36
	0.82	≤0.01	0.91	≤0.01	0.86	≤0.01	0.91	0.00	0.77	≤0.01