Prognostic value of the c-reactive protein/prognostic nutritional index ratio after hip fracture surgery in the elderly population

Figures

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  Figure 1. Pearson correlation A signifcant negative correlation between CRP and PNI (r=-0.761, P =0.016). CRP: C-reactive protein; PNI: prognostic nutritional index.

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  Figure 2. Kaplan-Meier survival curves stratifed by CPR, PNI and CRP/PNI ratio (A and B) Patients with elevated CRP (P <0.001) or decreased PNI (P <0.001) were associated with decreased 1-year survival, respectively. (C) Patients with CRP/PNI ratio ≤0.10 had a better 1-year survival than patients with CRP/PNI ratio >0.10 (P <0.001). CRP: C-reactive protein; PNI: prognostic nutritional index.

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  Figure 3. Comparison of the AUC for ROC curves The AUC of the CRP/PNI ratio was higher than other CRP or PNI, indicating that the CRP/PNI ratio was superior to the CRP or PNI for prognosis. CRP: C-reactive protein; PNI: prognostic nutritional index; AUC: area under curve; ROC: receiver operating characteristics.