From: The diagnostic value of pepsin detection in saliva for gastro-esophageal reflux disease: a preliminary study from China
Parameters
rs
P
Concentrations of pepsin
 vs. DeMeester score
0.665
<0.001
 vs. AET
0.423
 vs. BET
0.178
0.005
 vs. Number of all reflux episodes
0.424
 vs. LES
-0.181
0.004
 vs. UES
−0.056
0.376