Jain 2008.

Methods	Study: prospective, randomised. Allocation: computer. Blinding: yes.
Participants	120 patients: 60 P / 60 C.
Interventions	Hernioplasty ATB: amoxicillin‐clavulanic acid 1.2 gr IV. MA: before incision. Control: placebo.
Outcomes	IP= 1; IC= 1
Notes
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Low risk	Computer generated code
Allocation concealment (selection bias)	Low risk	Quote: "Randomization was performed by a computer‐generated code by a junior resident who was not involved in the surgery, data compilation or patient follow‐up. The same resident also prepared the antibiotic or the placebo syringes containing normal saline."
Blinding (performance bias and detection bias) All outcomes	Low risk	Yes
Blinding of participants and personnel (performance bias) All outcomes	Low risk	Yes
Blinding of outcome assessment (detection bias) All outcomes	Low risk	Quote: "The surgeon who performed the operation was not allowed to follow up their patient."