Table 3. Association of preoperative features with SSI.

Variables	Categories	Patients		p-value
		With SSI (n (%))	Without SSI (n (%))
Hemoglobin	Less than 11 mg/dL	14 (19.7%)	57 (80.3%)	0.004
	More than 11 mg/dL	26 (42.6%)	35 (57.4%)
Albumin (g/dL)	Less than 3.5	14 (21.9%)	50 (78.1%)	0.041
	More than 3.5	26 (38.2%)	42 (61.8%)
Blood glucose (mg/dL)	<80	12 (42.9%)	16 (57.1%)	0.011
	80-200	22 (36.7%)	38 (63.3%)
	>200	6 (13.6%)	38 (86.4%)
Type of urgency	Elective	13 (21.3%)	48 (78.7%)	0.037
	Emergency	27 (38%)	44 (62%)
Approach	Laparoscopy	14 (23.3%)	46 (76.7%)	0.112
	Open	26 (36.1%)	46 (63.9%)
Class of wound	Clean	10 (35.7%)	18 (64.3%)	0.478
	Clean-contaminated	10 (40%)	15 (60%)
	Contaminated	6 (27.3%)	16 (72.7%)
	Dirty	14 (24.6%)	43 (75.4%)
ASA score	1	8 (50%)	8 (50%)	0.002
	2	15 (34.1%)	29 (65.9%)
	3	15 (39.5%)	23 (60.5%)
	4	2 (5.9%)	32 (94.1%)