Table 1.

Patients characteristics.

Number of patients	152
Age (years)	57.53 ± 16.3
Gender (female/male)	82 (68.3%)/38 (31.7%)
Body mass index (BMI)	26.15 ± 5.9
Malignancy	18 (15%)
Diabetes	19 (15.8%)
Cardiopulmonary disease	32 (26.7%)
Immunosuppression	7 (5.8%)
Mannheim Peritonitis Index (MPI)	20 ± 6
Injury Severity Score (ISS)	23 ± 20
In-hospital mortality	32/152 (21.1%)
Type of per protocol incision (midline/transverse/combined, n = 120)	99 (82.5%)/16 (13.3%)/5 (4.1%)
Björck's classification at the initiation of OAT	Grade 1A–clean OA (65.8%)
	Grade 1B–contaminated OA (34.2%)
	Grade 2A–clean OA developing adherence (0%)
	Grade 2B–contaminated OA developing adherence (0%)
	Grade 3–OA complicated by fistula (0%)
	Grade 4–frozen OA (0%)
Björck's classification at the completion of OAT	Grade 1A–clean OA (83.7%)
	Grade 1B–contaminated OA (16.3%)
	Grade 2A–clean OA with adherence (0%)
	Grade 2B–contaminated OA with adherence (0%)
	Grade 3–fistula (0%)
	Grade 4–frozen abdomen (0%)