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

Table 3 Comparison of multichannel intraluminal impedance/pH monitoring and gastroesophageal reflux scintigraphy

	Gastroesophageal scintigraphy positive	Gastroesophageal scintigraphy negative	Total
MII-pHM positive	41	10	51
MII-pHM negative	6	3	9
Total	47	13	60

Kappa value 0.116 (P = 0.357, 95%CI: -0.01-0.24); Overall percent agreement = 73.3%; When MII-pHM is considered as reference test, positive percent agreement = 80.4% and negative percent agreement = 33.3%. MII-pHM: Multichannel intraluminal impedance-pH monitoring.