Clinical evaluation of ventilation mode on acute exacerbation of chronic obstructive pulmonary disease with respiratory failure

Table 3 Clinical outcomes in each group

Outcome	VCV group (n = 200)	PCV group (n = 200)	P value
In-hospital mortality (%)	32	28	0.53
ICU length of stay [median (IQR), days]	9 (6-14)	8 (5-13)	0.41
Duration of mechanical ventilation [median (IQR), days]	6 (4-10)	5 (3-9)	0.47
Lower Peak Airway Pressures	N/A	N/A	< 0.05
Barotrauma (%)	16	6	0.03

ICU: Intensive care unit; PCV: Pressure-controlled ventilation; VCV: Volume-controlled ventilation; N/A: Not applicable.