Software improvement for evaluation of laryngopharyngeal pH testing (Restech) – a comparison between DataView 3 and 4

Table 2 Comparison of Restech measurement values in patients with an abnormal measurement in DataView 3 and their consecutive scores in DataView 4 (n = 72 upright and n = 19 supine)

	DataView 3		Dataiew 4		P value
	mean	Range	mean	Range
RYAN score upright	114.11	10.29-630.6	51.51	0-287	0.0001
% time below threshold upright (pH < 5.5)	2.92	0.11-19.24	2.94	0-2.54	0.9181
RYAN score supine	29.25	6.96-175.64	9.92	0-28.86	0.0304
% time below threshold supine (pH < 5)	10.03	0.1-57.41	12.16	0-61.7	0.0069