Pessaux 2006.

Methods	Study: prospective, randomised. Allocation: NM. Blinding: No.
Participants	2402 patients: 2008 P / 394 C.
Interventions	Herniorrhaphy ATB: several, IV. MA: induction. Control: not treatment.
Outcomes	IP=68; IC=20
Notes	Additional information provided by the first author.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Quote: "A database was established from 3 prospective, randomised, multicenter studies led by the French Associations for Surgical Research on antibiotic prophylaxis in abdominal noncolorectal surgery". Comment: Probably yes.
Allocation concealment (selection bias)	Unclear risk	Not mentioned.
Blinding (performance bias and detection bias) All outcomes	High risk	No
Blinding of participants and personnel (performance bias) All outcomes	High risk	No
Blinding of outcome assessment (detection bias) All outcomes	High risk	No