Southampton scoring systems and ASEPSIS systems are for the severity of wound infection, which are paicularly useful in surveillance and research. PRISMA guidelines are for the methods of systematic review and meta-analysis Manchester scoring system for severity of illnessPOSSUM score (Physiologic and Operative Severity Score for the enUmeration of Moality and Morbidity) are used to predict all-cause moality in postoperative critical care patientsRef: Bailey and Love 27e pg: 47