Table 1 Relationship between thin liquid swallowing aspiration findings in videofluoroscopy and various variables.

From: Comparison of swallowing dynamics between jelly and thickened liquid commonly used for swallowing training in Japan

 

Aspiration present 24 (13.7%)

Aspiration absent 151 (86.3%)

P-value

Continuous variable

Mann–Whitney U test

Age (years), Median, IQR

70.5 (60.8, 77.8)

70.0 (61.0, 77.0)

0.90

BMI (kg/m2, Median, IQR

23.2 (22.1, 25.4)

23.3 (21.3, 25.9)

0.41

PTT (s), Median, IQR

0.93 (0.86, 1.11)

0.90 (0.73, 1.05)

0.65

PDT (s), Median, IQR

0.20 (0.30, 0.25)

0.14 (0.00, 0.27)

0.99

LEDT (s), Median, IQR

0.37 (0.20, 0.57)

0.23 (0.14, 0.37)

0.04*

Categorical variable

χ2 test

Male

13 (54.2%)

91 (60.3%)

0.36

Hypertension

19 (79.2%)

129 (85.4%)

0.30

Diabetes

6 (25.0%)

36 (23.8%)

0.54

Atrial fibrillation

1 (4.2%)

11 (7.3%)

0.49

Hemorrhagic stroke

7 (29.2%)

24 (15.9%)

0.08

Length of LEDT > 0.35 s

12 (50.0%)

42 (27.8%)

0.035*

  1. IQR, interquartile range; BMI, body mass index; PTT, pharyngeal transit time; PDT, pharyngeal delay time; LEDT, laryngeal elevation delay time
  2. *P < 0.05
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