Table 2. LASSO logistic regression analysis in the training set.

Variable	VIF	β	OR (95% CI)	p value
ChokCghHist	2.152	2.436	11.427 (2.187–59.709)	0.004
FaceExpr	2.192	1.075	2.929 (1.055–8.134)	0.039
WaterSwaT	2.609	1.450	4.262 (1.496–12.140)	0.007
Barthel	1.670	−0.028	0.972 (0.950–0.995)	0.017

Notes.

Abbreviations

ChokCghHist

choking cough history

FaceExpr

facial expression

WaterSwaT

water-swallowing test

VIF

variance inflation factor