From: Comparison of the clinical characteristics and prognosis of primary versus secondary acute gastrointestinal injury in critically ill patients
AGI grades
P-AGI
(n = 109)
S-AGI
(n = 182)
P value
I, n (%)
5 (5%)
53 (29.1%)
<0.001
II, n (%)
55 (55%)
109 (59.9%)
0.426
III, n (%)
26 (26%)
14 (7.7%)
IV, n (%)
14 (14%)
6 (3.3%)
0.001