Extraesophageal Reflux: What Is the Best Parameter for pH-Monitoring Data Analysis from the Perspective of Patient Response to Proton Pump Inhibitors?

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^+	EER^−	P
NOR	8.00 ± 3.10	6.31 ± 2.67	0.0166
AET	7.93 ± 2.65	6.15 ± 2.83	0.0071
RAI	8.57 ± 3.00	6.16 ± 2.59	0.0007