Surgical site infection
SSI
At 30 days, the mean (s.d.) BWHQ score was 6.4 (5.4) in the intervention group compared to 5.0 (3.7) in the control group (Full trial outcomes—surgical site infectionAt 30 days, seven participants in the intervention group required treatment for SSI (20.6 per cent, c.i. [8.7–37.9]), of whom four required antibiotics alone and five required surgical intervention. In the control group, eight participants required treatment for SSI (25.8 per cent, c.i. [11.9–44.6]), four with antibiotics alone and six requiring surgery. By 90 days, 10 participants required treatment for SSI in the intervention group (31.3 per cent, c.i. [16.1–50.0]), of whom 8 required surgical intervention. Only two required treatment in the control group (7.4 per cent, c.i. [0.9–24.3]). There was no signal of a beneficial effect of antimicrobial sutures in terms of SSI, with poorer BWHQ scores in the intervention group and higher proportions of participants requiring treatment for SSI.