Table 2:

NEC features in infants with severe WMI and non-severe WMI

Variable	N	Overall	Mild/noWMI	Moderate/Severe WMI	P-Value
		N=67	N=48	N=19
Clinical presentation, n (%)	59				0.78
Abdominal Distension		54 (91.5%)	38 (92.7%)	16 (88.9%)
Bloody Stools		3 (5.1%)	2 (4.9%)	1 (5.6%)
Feeding Intolerance		2 (3.4%)	1 (2.4%)	1 (5.6%)
Pneumatosis	59	22 (37.3%)	14 (34.1%)	8 (44.4%)	0.45
Pneumoperitoneum	59	35 (59.3%)	23 (56.1%)	12 (66.7%)	0.45
Portal Venous Gas	59	2 (3.4%)	1 (2.4%)	1 (5.6%)	0.52
Age of NEC Onset (days), median (IQR)	25	8 (6, 23)	7 (5, 16)	8 (7, 34)	0.32
Fulminant NEC, n (%)	59	4 (6.8%)	4 (9.8%)	0 (0.00%)	0.30
Presence of Penrose Drain, n (%)	57	25 (43.9%)	18 (45.0%)	7 (41.2%)	0.80
Surgery < 48 Hours, n (%)	59	40 (67.8%)	29 (70.7%)	11 (61.1%)	0.47
Length of Bowel Resected (cm), median (IQR)	59	12.7 (3.7, 28.8)	10.4 (3.7, 28)	15.7 (9.0, 28.8)	0.56
Region of Bowel Resected, n (%)	54				0.18
Small Bowel Resected		35 (64.8%)	27 (71.1%)	8 (50.0%)
Large bowel resected		2 (3.7%)	2 (5.3%)	0 (0.00%)
combined large and Small Bowel Resected		17 (31.5%)	9 (23.7%)	8 (50.0%)
Presence of Ileocecal Valve, n (%)	58	45 (77.6%)	34 (82.9%)	11 (64.7%)	0.17
Surgical Morbidity (Infection, Adhesions, Strictures, Dehiscence), n (%)	67	23 (34.3%)	13 (27.1%)	10 (52.6%)	0.047
Single Surgical Morbidity (Infection, Adhesions, Strictures, Dehiscence), n (%)	67	15 (22.4%)	8 (16.7%)	7 (36.8%)	0.11
More than One Surgical Morbidity (Infection, Adhesions, Strictures, Dehiscence), n (%)	67	7 (10.4%)	4 (8.3%)	3 (15.8%)	0.40
Adhesions, n (%)	67	9 (13.4%)	7 (14.6%)	2 (10.5%)	0.99
Wound Dehiscence, n (%)	67	8 (11.9%)	3 (6.3%)	5 (26.3%)	0.036
Wound Infection, n (%)	67	3 (4.5%)	1 (2.1%)	2 (10.5%)	0.19
Stricture, n (%)	67	5 (7.5%)	4 (8.3%)	1 (5.3%)	0.99
Fistula, n (%)	67	3 (4.5%)	1 (2.1%)	2 (10.5%)	0.192
Compartment Syndrome, n (%)	67	1 (1.5%)	1 (2.1%)	0 (0.00%)	0.99
Short Bowel Syndrome, n (%)	50	29 (58.0%)	19 (54.3%)	10 (66.7%)	0.416