Impact of the systematic use of the volume-viscosity swallow test in patients with acute ischaemic stroke: a retrospective study

Table 4 The comparison of different outcomes of dysphagia by WST and V-VST in participant with II-V level by WST (n = 126)

Variables	Pre-V-VST period	V-VST period	χ²	P
Variables	(n = 74)	(n = 52)	χ²	P
Nasogastric tube feeding	34(45.9)	13(25.0)	5.729	0.017^*
SAP	26(35.1)	9(17.3)	4.838	0.028^*

^*The difference was statistically significant
SAP stroke-associated pneumonia; WST water swallow test; V-VST volume–viscosity swallow test. In the pre-V-VST period, patients only received 30-ml WST. In the V-VST period, patients received 30-ml WST first, those achieved level II-V in WST continued with V-VST

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