24-hour esophageal pH-monitoring in children suspected of gastroesophageal reflux disease: Analysis of intraesophageal pH monitoring values recorded in distal and proximal channel at diagnosis

Table 1 Qualification of 264 children suspected of GERD into study groups (at diagnosis)

	Examined children with reflux symptoms
Groups ofexamined children	Sex			Age range (mo)
		Number		>1.5-4		>4-16		>16-102
		n	%	n	%	n	%	n	%
Group 1 physiological GER n =32	Boys	17	6.4	17	6.4	-	-	-
	Girls	15	5.7	15	5.7	-	-	-	-
Group 2 Primary GER n = 76	Boys	39	14.8	-	-	23	8.7	16	6.1
	Girls	37	14	-	-	21	7.9	16	6.1
Group 3 GER + CMA/FA n = 62	Boys	33	12.5	-	-	16	6.1	17	6.4
	Girls	29	11	-	-	14	5.3	15	5.7
Group 4 reference group CMA/ FA n = 32	Boys	19	7.2	-	-	7	2.6	12	4.5
	Girls	13	4.9	-	-	5	1.9	8	3
Group 5 GER (-) + CMA/ FA (-) n = 62	Boys	32	12.1	-	-	8	3	24	9.1
	Girls	30	11.4	-	-	10	3.8	20	7.6
Total		264	100	32	12.1	104	39.4	128	48.5