Table 2.

DeMeester score for different levels of the pH-metry probe above the proximal border of the lower esophageal sphincter (PBLES)

GROUP	3 cm above PBLES	5 cm above PBLES	P
GERD	25.67 ± 12.23	15.87 ± 11.71	0.008
CONTROL	11.27 ± 1.69	10.10 ± 2.33	0.37
P	0.001	0.022