Pharyngeal Reflux Pharyngeal Reflux P-value
Pre-prandial Post-prandial
Within 2 hours, n
Acid 0.134 ± 0.375 0.212 ± 0.420 0.110
Weakly acidic 0.433 ± 0.447 0.853 ± 0.665 < 0.001*
Weakly alkaline 0.065 ± 0.180 0.191 ± 0.390 0.012*
All reflux 0.632 ± 0.548 1.256 ± 0.878 < 0.001*