Table 3: Average reflux finding score (RFS) and its standard deviation (SD) in group of patients with extraesophageal reflux confirmed by pH monitoring (EER+) and group of patients without EER (EER) using three different parameters (NOR: number of refluxes, AET: acid exposure time, and RAI: reflux area index). The two-sample Student’s t-test was for statistical analysis of differences between the EER+ and the EER group.

Parameter EER+ EERP

NOR8.00 ± 3.106.31 ± 2.670.0166
AET7.93 ± 2.656.15 ± 2.830.0071
RAI8.57 ± 3.006.16 ± 2.590.0007