. Author manuscript; available in PMC: 2009 Feb 15.

Published in final edited form as: JPEN J Parenter Enteral Nutr. 2004;28(2):79–84. doi: 10.1177/014860710402800279

Table II.

Description of pepsin concentrations in tracheal secretions from experimental and control animals according to time of data collection (2 hours, 4 hours, and 6 hours)

Tracheal secretion pepsin concentration, μg/mL	Experimental animals^* Time of data collection			Control animals Time of data collection
Tracheal secretion pepsin concentration, μg/mL	2-hours	4-hours	6-hours	2-hours	4-hours	6-hours
Mean ± SD	140.7 ± 99.3	126.6 ± 98.7	115.5 ± 91.6	0.0	0.0	0.0
Range	(0–422.8)	(0–422.3)	(0–413.0)	—	—	—
N	160	161	158	17	19	20

In the experimental group, pepsin was found at all 3 data collection times in 149 of the 161 animals.