TABLE 1.

Characteristics of the Study Population

Patient Characteristics	All Patients (n = 233)	PFC (n = 178)	No PFC (n = 55)	p
Age, y	56 (43–69)	56 (40–70)	57 (48–65)	0.630
Male	123 (53%)	96 (54%)	27 (49%)	0.541
Charlson Comorbidity Index	1.0 (0.0–3.0)	1.0 (0.0–3.0)	2.0 (0.0–3.0)	0.060
ASA physical status classification	4.0 (3.0–4.0)	4.0 (3.0–4.0)	4.0 (3.0–4.0)	0.602
Body mass index, kg/m2	28 (23–33)	27 (23–32)	28 (24–40)	0.174
Abdominal sepsis	141 (61%)	97 (54%)	44 (80%)	0.002
Bowel ischemia	67 (48%)	48 (27%)	19 (35%)	0.308
Hollow viscous perforation	51 (36%)	35 (20%)	16 (29%)	0.141
Inflammation/infection	20 (14%)	13 (7%)	7 (13%)	0.268
Anastomotic leak	3 (2%)	1 (1%)	2 (4%)	0.140
Trauma	79 (34%)	70 (39%)	9 (16%)	0.001
Injury severity score	33 (24–40)	33 (23–40)	40 (32–47)	0.062
Nontrauma hemorrhage/ACS	13 (6%)	11 (6%)	2 (4%)	0.738
On admission
Heart rate, beats/min	99 (84–113)	99 (83–113)	97 (84–109)	0.677
Systolic blood pressure, mm Hg	126 (106–143)	127 (107–145)	121 (105–138)	0.192
Mean arterial pressure, mm Hg	85 (73–98)	86 (74–99)	82 (71–98)	0.371
Vasopressor infusion	43 (19%)	33 (19%)	10 (18%)	>0.999
Lactate, mmol/L	2.5 (1.3–3.8)	2.5 (1.3–4.2)	2.4 (1.4–3.3)	0.733
Creatinine, mg/dL	1.0 (0.8–1.3)	1.0 (0.8–1.2)	1.0 (0.7–1.7))	0.578
International normalized ratio	1.3 (1.1–1.5]	1.3 (1.1–1.5)	1.3 (1.1–1.5)	0.556
White blood cells, ×109/L	12.3 (8.4–17.0)	12.7 (8.6–17.2)	11.3 (7.4–16.1)	0.131
Initial laparotomy
Hollow viscous resection or repair	143 (61%)	99 (56%)	35 (64%)	0.350
Solid organ resection or repair	64 (27%)	44 (25%)	6 (11%)	0.038
Washout/lysis of adhesions only	36 (15%)	20 (11%)	7 (13%)	0.810

Data are presented as median (interquartile range) or n (%).

ACS indicates abdominal compartment syndrome; ASA, American Society of Anesthesiologists; ICU, intensive care unit.