Figure 2

Cox hazard ratio of survival for PNI in various subgroups. A low level of PNI was associated with increased mortality in the group aged over 70 years, female sex, no AKI, and eGFR > 30 ml/min/1.73m². PNI, prognostic nutritional index; AKI, acute kidney injury; eGFR, estimated glomerular filtration rate.