TABLE 2.

Reflux profiles in patients that did and did not improve postoperatively (interquartile range)

	Improved (N = 22)	Not improved (N = 12)	P
No. acid events	13 (5, 25)	18 (5, 72)	0.36
No. nonacid events	19 (10, 29)	15 (2, 23)	0.21
No. pH-only events	18 (8, 30)	16 (8, 24)	0.71
% full column reflux	38 ± 23	17 ± 14	0.005
% time acid (MII)	1.4 ± 2.2	0.8 ± 1.5	0.4
% time nonacid (MII)	1.3 ± 2.6	0.6 ± 1.0	0.3
% time all MII events (MII)	2.7 ± 3.5	1.4 ± 2.4	0.3
pH <4 for % (pH)	7.9 ± 7.7	13.7 ± 13.8	0.12

MII = multichannel intraluminal impedance.