Effects of high flow nasal cannula on the coordination between swallowing and breathing in postextubation patients, a randomized crossover study

Table 2 Primary outcome

Outcomes	Total patients (n = 22)		p value
Outcomes	HFNO	LFNO	p value
Swallowing-breathing coordination, median [Q1,Q3]
Total swallowing numbers**	18.5 [15, 22]	21 [17, 24]	0.158
I swallow (number)	2.5 [1, 4]	4 [3, 6]	0.002*
I swallow (%)	14.4 [6.7, 22.2]	23.1 [10.7, 28.5]	0.044*
E swallow (number)	14 [9, 21]	13.5 [11, 19]	0.452
E swallow (%)	74.3 [65.9, 86.7]	67.6 [55.6, 81]	0.048*
I-E swallow (number)	0.5 [0, 2]	1 [0, 2]	0.292
I-E swallow (%)	1.1 [0, 8.3]	6.1 [0, 9.3]	0.384
E-I swallow (number)	1 [0, 2]	1 [0, 2]	0.886
E-I swallow (%)	7.5 [0, 10.5]	4.5 [0, 9.5]	0.943

*p < 0.05; **Total swallowing numbers = summation of three swallowing tests; I swallow, inhale–swallow–inhale; E swallow, exhale–swallow–exhale; I-E swallow, inhale–swallow–exhale; E-I swallow, exhale–swallow–inhale

ISSN: 1364-8535