Noninvasive Ventilation Weaning in Acute Hypercapnic Respiratory Failure due to COPD Exacerbation: A Real-Life Observational Study

Table 4

Study outcomes.

Outcome, (%)	Completed Group ()	Chronic NIV Group ()	Failed Group ()	value
Primary
AHRF relapse after NIV discontinuation	0	0	3 (27)	0.01
In-hospital mortality	0	0	2 (18)	0.03
Secondary
Readmission rate at 3 months	6 (30)	11 (55)	2 (22)	0.91
Mortality at 3 months	4 (20)	4 (20)	4 (44)	0.23

IQR, interquartile range 25th–75th percentile; AHRF, acute hypercapnic respiratory failure; NIV, noninvasive ventilation.