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Table 4 Results of PAS 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
1 2 3 4 1 2 3 4
PAS
 Thin Barium 19 2 3 6 26 1 3 0 −5.285 <0.001
 Thick Barium 19 2 8 1 26 3 1 0 −5.337 <0.001
  1. a Wilcoxon signed-rank test