Fig. 1From: Efficacy of universal preoperative decolonization with Polyhexanide in primary joint arthroplasty on surgical site infections. A multicenter before-and after-studya Rate of observed and modelled overall Surgical Site Infection rate (SSIR) and b Staphylococcus aureus Surgical Site Infection rate (S. aureus -SSIR) by month of surgery in the period prior to (0–24) and after implementation of the intervention (25–48)Back to article page