Table 1.

Baseline data and procedural characteristics of orotracheal intubation in both groups of mice

	Conventional group	Modified group	P value
Number, n	42	50	-
Body weight (g)	25.40 ± 1.50	25.24 ± 1.51	0.602
Endotracheal intubation time (minutes)	2.17 ± 0.26	1.73 ± 0.18	<0.001
Intubation attempt(s)	1.33 ± 0.6	1 ± 0	0.001
Success rate (%)	42 (100)	50 (100)	NS
Difficulties met during intubation
Overall (%)	7 (16.7)a	0 (0)	0.009
Vigorous gag reflex (%)	4 (9.5)	0 (0)	0.086
Salivary secretion (%)	5 (11.9)	0 (0)	0.041
Resistance on advancement (%)	3 (7.1)	0 (0)	0.183
Complications
Overall (%)	5 (11.9)	0 (0)	0.041
Esophageal disposition (%)	4 (9.5)	0 (0)	0.086
Oral bleeding (%)	1 (2.4)	0 (0)	0.457
Death (%)	0 (0)	0 (0)	NS

^aMore than one kind of difficulty/complication occurred during intubation in some mice