Table 1 Exclusion criteria of the BaFO trial

1

ASA grade >3

2

Pregnant or lactating women

3

Midline or transverse laparotomy within the last 60 days prior to trial intervention

4

Planned relaparotomy within 30 days after trial intervention

5

Contaminated operations according to CDC definition [9]

6

Small abdominal operations without planned transverse or midline laparotomy (for example, appendectomy)

7

Concurrent abdominal wall infections

8

Severe immunosuppression, for example after: organ or bone marrow transplantation, concurrent steroid treatment with >10 mg prednisone daily (or an equivalent dose of any other steroid), concurrent infliximab treatment or treatment with an equivalent immunosuppressive substance, or chemotherapy within the last 2 weeks prior to trial intervention

9

Severe preoperative neutropenia (≤0.5 × 10⁹ cells/l)

10

Liver cirrhosis; Child-Pugh B or C [43]