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Table 3 Results of residue in valleculae and pyriform sinuses for VFSS before and after the NGT removal

From: Effect of an indwelling nasogastric tube on swallowing function in elderly post-stroke dysphagia patients with long-term nasal feeding

 

Before removal

After removal

Z-value

P-valuea

0

1

2

3

0

1

2

3

Valleculae Residue

 Thin Barium

0

0

22

8

8

21

1

0

−3.92

<0.001

 Thick Barium

0

0

15

15

4

20

6

0

−2.92

0.003

Pyriform sinuses Residue

 Thin Barium

0

6

23

1

16

14

0

0

−3.391

0.001

 Thick Barium

0

2

20

8

4

22

4

0

−2.82

0.005

  1. a Wilcoxon signed-rank test