Table 3.

Multivariate regression analyses with GI symptoms, failure of enteral nutrition, and intra-abdominal hypertension predicting 28 day survival

Day 1	P value	OR	Lower CI 95 %	Upper CI 95 %
Absent bowel sounds	0.007	2.457	1.285	4.700
Vomiting/regurgitation	0.877	0.903	0.25	3.258
Maximum GRV > 500 ml	0.888	0.910	0.244	3.397
Diarrhoea	0.387	1.700	0.511	5.659
Bowel distension	0.916	0.954	0.398	2.289
GI bleeding	0.042	4.404	1.058	18.333
EN < 80 % of caloric needs	0.032	0.325	0.116	0.906
IAH	0.316	0.708	0.361	1.390
DAY 2
Absent bowel sounds	0.425	1.368	0.633	2.957
Vomiting/regurgitation	0.887	1.120	0.234	5.352
Maximum GRV > 500 ml	0.673	1.392	0.300	6.469
Diarrhoea	0.408	1.640	0.508	5.289
Bowel distension	0.759	1.162	0.445	3.030
GI bleeding	0.008	19.093	2.153	169.336
EN < 80 % of caloric needs	0.040	0.355	0.132	0.952
IAH	0.062	0.461	0.204	1.041
DAY 4
Absent bowel sounds	0.192	1.793	0.746	4.310
Vomiting/regurgitation	0.366	3.147	0.263	37.699
Maximum GRV > 500 ml	0.398	1.995	0.402	9.901
Diarrhoea	0.361	1.642	0.567	4.758
Bowel distension	0.829	1.122	0.396	3.173
GI bleeding	0.150	5.595	0.538	58.177
EN < 80 % of caloric needs	0.440	1.437	0.573	3.605
IAH	0.127	0.512	0.217	1.210
DAY 7
Absent bowel sounds	0.162	2.157	0.735	6.332
Vomiting/regurgitation	0.230	0.162	0.008	3.158
Maximum GRV > 500 ml	0.636	1.490	0.285	7.790
Diarrhea	0.793	1.181	0.342	4.083
Bowel distension	0.036	7.070	1.140	43.859
GI bleeding	0.249	3.822	0.392	37.281
EN < 80 % of caloric needs	0.951	0.970	0.364	2.582
IAH	0.153	0.428	0.134	1.372

The variables entered into the multivariate analysis were exclusively those listed above

Significant findings are marked in bold

GRV gastric residual volume, GI gastrointestinal, EN enteral nutrition, IAH intra-abdominal hypertension