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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