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

Table 1 Comparison of pH monitoring and gastroesophageal reflux scintigraphy

	Gastroesophageal scintigraphy positive	Gastroesophageal scintigraphy negative	Total
pH monitoring positive	25	9	34
pH monitoring negative	22	4	26
Total	47	13	60

Kappa value= -0.118 [P = 0.302, 95%CI: -0.232-(-0.004)]; Overall percent agreement = 48.3%; When pH monitoring is considered as reference test, positive percent agreement = 73.5% and negative percent agreement = 15.4%.