. Author manuscript; available in PMC: 2013 Nov 21.

Published in final edited form as: Top Stroke Rehabil. 2013 Sep-Oct;20(5):10.1310/tsr2005-450. doi: 10.1310/tsr2005-450

Table 4. Pressure and duration measurements collected before and after I-PRO therapy, along with normative values.

Measure	Pre I-PRO therapy	Post I-PRO therapy	P value	Normative values²⁶
NP max, mm Hg	69 (24)	65 (8)	.73	154 (42)
NP duration, s	0.53 (0.22)	0.96 (.04)	.04	0.84 (0.21)
HP max, mm Hg	33 (11)	63 (8)	.02	307 (172)
HP duration, s	0.58 (0.33)	1.03 (0.19)	.73	0.58 (0.17)
UES pre-nadir max, mm Hg	105 (15)	87 (33)	.31	226 (115)
UES post-nadir max, mm Hg	107 (29)	92 (21)	.40	318 (135)
UES nadir, mm Hg	-4 (2)	-18 (5)	<.01^*	-4 (7)
UES activity time, s	1.46 (0.64)	1.42 (0.23)	.81	0.94 (0.18)
Total swallow time, s	1.79 (0.54)	1.74 (0.28)	.86	0.89 (0.13)

Note : Values given as mean (SD). UES activity time is defined as time between pre-nadir and post-nadir peak pressures.

HP = hypopharynx; NP = nasopharynx; UES = upper esophageal sphincter.

Significant P values against the Bonferroni correction.