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 |