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. Author manuscript; available in PMC: 2014 Jul 10.
Published in final edited form as: J Gastrointest Surg. 2011 Oct 28;16(1):16–25. doi: 10.1007/s11605-011-1741-1

Table 5.

Normal subjects (off PPI) vs. treatment responsive LPR patients (off PPI)

HMII measurements Normal subjects
(off PPI): N=34		 Treatment responsive LPR patients
(off PPI): N=24		 p value
Number of LPR events 0 (0–0) 1 (1–2) <0.001
Number of full column reflux events (2 cm distal to UES) 1 (0–2.75) 9.5 (5.8–17) <0.001
Number of total reflux events 22 (8.3–32) 23.5 (12.8–32.5) 0.301
DMS 3.1 (1.2–5.4) 8.2 (5.0–16.8) <0.001
Predominate position of events Upright Upright

Values are expressed as a median (interquartile range). Variables were compared using the non-parametric Wilcoxon signed rank test and a p value<0.05 was considered significant