Scintigraphy in laryngopharyngeal and gastroesophageal reflux disease: A definitive diagnostic test?

Table 2 pH studies

pH studies	mean ± SD	Range
		Minimum	Maximum
pH distal episodes	128.06 ± 91.41	8	356
pH distal %total time	16.04 ± 19.22	5.2	105
pH distal erect exposure	15.68 ± 18.72	4.2	102
pH distal sup exposure	20.10 ± 29.35	13	102
pH proximal episodes	31.30 ± 38.48	11	145
pH proximal %total time	1.59 ± 2.11	1	9.7
pH prox erect exposure	4.68 ± 17.65	0	102
pH prox sup exposure	10.52 ± 29.49	2	102