Quantifying abdominal abscess burden using area under the curve methods inspired by dehiscence, infection/inflammation, seroma, hematoma classification

Table 1 Baseline patient characteristics

Characteristics	Total (n)	n (%)
Age, years, median (IQR)	59	65 (59-77)
Male	59	36 (61.0)
ASA classification	59
I		7 (11.9)
II		39 (66.1)
III		12 (20.3)
IV		1 (1.7)
Smoker	59	32 (54.2)
Diabetes mellitus	59	15 (25.4)
BMI, kg/m2, median (IQR)	57	22.2 (20.4-24.5)
Malnutrition (GLIM criteria)	59	28 (47.5)
Malignancy	59	19 (32.2)
Emergency surgery	59	36 (61.0)
Laparotomy	59	12 (20.3)
Operative time, minutes, median (IQR)	59	168 (93-275)
Intraoperative blood loss (mL)	59	15 (5-100)
Intraoperative drain placement	59	33 (55.9)
Wound class	59
Clean operation		1 (1.7)
Clean-contaminated operation		19 (32.2)
Contaminated operation		5 (8.5)
Dirty/infected operation		34 (57.6)
Procedure	59
Appendectomy		19 (32.2)
Colorectal surgery		24 (40.7)
Upper gastrointestinal surgery		6 (10.2)
Hepatobiliary and pancreatic surgery		7 (11.9)
Others		3 (5.1)

ASA: American Society of Anesthesiologists; BMI: Body mass index; GLIM: Global leadership initiative on malnutrition; IQR: Interquartile range.