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Table. 2.

VDS and PAS results of the two groups divided by the cutoff values of VC or PCF for aspiration

Variables, No. (%) VC PCF


Above cutoff (>47.8%) At or below cutoff (≤47.8%) P-value Above cutoff (>155 L/min) At or below cutoff (≤155 L/min) P-value
Lip closure 0.00 (0.00) 0.17 (0.58) 0.16 0.00 (0.00) 0.15 (0.56) 0.19
Bolus formation 0.13 (0.61) 0.50 (1.17) 0.21 0.13 (0.63) 0.46 (1.13) 0.26
Mastication 0.00 (0.00) 0.33 (1.16) 0.16 0.00 (0.00) 0.31 (1.11) 0.18
Apraxia 0.13 (0.61) 0.25 (0.58) 0.56 0.20 (0.69) 0.12 (0.42) 0.71
Tongue to palate contact 0.21 (1.02) 0.83 (1.95) 0.21 0.22 (1.04) 0.77 (1.88) 0.26
Premature bolus loss 1.25 (1.44) 2.21 (1.44) 0.07 1.24 (1.48) 2.15 (1.39) 0.08
Oral transit time 0.88 (1.39) 3.00 (0.00) <0.01** 1.30 (1.52) 2.08 (1.44) 0.15
Triggering of pharyngeal swallow 2.44 (2.29) 4.13 (1.30) 0.02* 2.34 (2.30) 4.15 (1.25) 0.01*
Vallecular residue 0.83 (1.55) 1.17 (1.59) 0.37 0.70 (1.43) 2.31 (1.60) <0.01**
Laryngeal elevation 0.00 (0.00) 0.75 (2.60) 0.16 0.00 (0.00) 0.69 (2.50) 0.19
Pyriformis sinus residue 0.75 (2.17) 1.13 (2.04) 0.62 0.78 (2.21) 1.04 (1.97) 0.73
Coating of pharyngeal wall 1.13 (3.04) 2.25 (4.07) 0.36 0.78 (2.59) 2.77 (4.32) 0.09
Pharyngeal transit time 0.75 (2.03) 1.50 (2.71) 0.36 0.52 (1.73) 1.85 (2.88) 0.09
Aspiration 2.00 (4.57) 5.00 (6.18) 0.11 1.57 (4.13) 5.54 (6.23) 0.03*
VDS total score 10.48 (14.03) 24.21 (19.24) 0.02* 9.78 (13.81) 24.39 (18.58) 0.01*
PAS 3.75 (2.77) 4.42 (2.39) 0.46 3.13 (2.63) 5.46 (1.94) 0.01*

Values are mean values (standard deviations) of sub-items in VDS scale

PAS: penetration-aspiration scale, PCF: peak cough flow, VC: vital capacity, VDS: videofluoroscopic dysphagia scale

* P<0.05, **P<0.01

J Korean Dysphagia Soc 2021;11:25~34 https://doi.org/10.34160/jkds.2021.11.1.004
© J. Korean Dysphagia Soc.