Table 2.

Consistency findings

Outcomes	HEMII-pH
	Kappa	p value
Morning pepsin test	0.036	NS
Post-lunch pepsin test	0.024	NS
Post-dinner pepsin test	0.022	NS
Highest pepsin test	0.095	NS
RSS-12 > 11	0.050	NS
RSS-12 > 11 and RSA > 14	0.638	0.005

HEMII-pH, hypopharyngeal–esophageal multichannel intraluminal impedance-pH monitoring; NS, non-significant; RSA, reflux sign assessment; RSS-12, reflux symptom score-12