Comparison of the clinical characteristics and prognosis of primary versus secondary acute gastrointestinal injury in critically ill patients

Table 2 Comparison of primary and secondary AGI in clinical manifestation about GI tract

Parameters of digestive tract	P-AGI (n = 100)	S-AGI (n = 182)	P value
Hypoactive bowel sounds, no. (%)	86 (86.0%)	146 (80.2%)	0.224
Abdominal distention, no. (%)	84 (84.0%)	126 (69.2%)	0.007
Feeding intolerance^a, no. (%)	56 (56.0%)	83 (45.6%)	0.095
Enteroparalysis, no. (%)	48 (48.0%)	50 (27.5%)	0.001
Gastric retention	23 (23.0%)	46 (25.3%)	0.671
Diarrhea, no. (%)	12 (12.0%)	31 (17.0%)	0.261
Positive in fecal occult test, no. (%)	18 (18.0%)	38 (20.9%)	0.562
GI bleeding, no. (%)	11 (11.0%)	16 (8.8%)	0.546
IAP >12 mmHg, no. (%)	22 (22.0%)	31 (17.0%)	0.340

IAP, intra-abdominal pressure, GI gastrointestinal, P primary, S secondary
^aFeeding intolerance was considered to be present if the minimum of 20 kcal/kg BW/day via enteral route could not be reached within 72 h of feeding attempt or if enteral feeding had to be stopped for whatever clinical reason