Figure 2.

Schematic concept of “real‐time” risk calculator models of postoperative morbidities and mortality. “Real‐time” risk models provide the expected risk of morbidities and mortality at any time point from pre‐, intra‐, and postoperative periods within 30 d after the surgery. We used three variable categories (C1, C2, and C3) for mortality and two variable categories (C1 and C2) for 10 postoperative morbidities. C1, preoperative variables; C2, C1 + intraoperative variables; C3, C2 + postoperative morbidities