Figure 2

Formula of ICOP Score and sICOP. (A) The ICOP score is calculated as the predicted probability by using coefficient values in Table 2. (B) The formula of simplified version of ICOP (sICOP) score. The sICOP score was calculated by summing up each score points with the corresponding categorical variable. CKD, chronic kidney disease; MAP, mean arterial pressure; OI, oxygen index; BUN, blood urea nitrogen.