Comparison of multichannel intraluminal impedance-pH monitoring and reflux scintigraphy in pediatric patients with suspected gastroesophageal reflux

Table 2 Comparison of multichannel intraluminal impedance monitoring and gastroesophageal reflux scintigraphy

	Gastroesophageal scintigraphy positive	Gastroesophageal scintigraphy negative	Total
MII monitoring positive	34	10	44
MII monitoring negative	13	3	16
Total	47	13	60

Kappa value = -0.042 (P = 0.741, 95%CI: -0.17-0.086); Overall percent agreement = 61.7%; When MII monitoring is considered as a reference test, positive percent agreement = 77.3% and negative percent agreement = 18.8%. MII: Multichannel intraluminal impedance.