Table 2.

Indications for intubation in each group

Indications for intubation	Extubation success (n)	Extubation failure (n)	p value
Emergent abdominal surgery	13	1	0.22
Emergent non-abdominal surgery	48	5
Elective abdominal surgery	10	1
Elective non-abdominal surgery	110	3
Altered mental status	3	0
Acute myocardial infarction	7	1
Congestive heart failure	19	0
Asthma	1	0
Pneumonia	13	1
Sepsis	22	3
COPD	2	1
Drug intoxication	5	0
Hemorrhagic stroke	9	1
Ischemic stroke	2	0
Gastrointestinal bleeding	4	0
Status epilepticus	6	1
Others	37	6