Table 2.

Individual results of pH and multiple intraluminal impedance results before percutaneous endoscopic gastrostomy placement

Patient	Total GOR	Total GOR/h	Total non-acid GOR	Total non-acid GOR/h	Total acid GOR	Total acid GOR/h	Prox RI (%)	Dist RI (%)	Reflux events reaching ch 1
1	24	2.00	24	2.00	0	0.00	0.0	0.0	18
2	54	4.50	49	4.08	5	0.42	0.2	0.4	29
3	18	1.50	13	1.08	5	0.42	0.1	2.2	6
4	7	0.58	6	0.50	1	0.08	0.3	0.1	6
5	23	1.92	22	1.83	1	0.08	0.2	0.5	14
6	3	0.25	2	0.17	1	0.08	0.0	0.1	1
7	19	1.58	19	1.58	0	0.00	0.0	0.0	9
8	2	0.17	2	0.17	0	0.00	0.0	0.0	1
9	17	1.42	6	0.50	11	0.92	0.3	2.0	10
10	16	1.33	13	1.08	3	0.25	0.2	1.2	9

“Ch 1” refers to the most proximal impedance measurement and was located in the pharynx or most proximal 3 cm of oesophagus. GOR: Gastro-oesophageal reflux; RI: Reflux index.