Comparison of APACHE II scores and mortality with CRP/albumin, neutrophil/lymphocyte and thrombocyte/lymphocyte ratios in patients admitted to internal medicine and anesthesia reanimation intensive care unit

Abstract

Objectives: This study aimed to evaluate the relationship between C-reactive protein/albumin (CRP/Alb), neutrophil/lymphocyte (NLR), platelet/lymphocyte (PLR) ratios and the Acute Physiology And Chronic Health Evaluation II (APACHE II) score and 28-day mortality among 400 patients admitted to internal medicine and anesthesia reanimation intensive care unit (ICU). Methods: This prospective study included a total of 400 patients who were admitted to hospital internal medicine and anesthesia reanimation ICUs. Results: The most common reasons for ICU admission were pneumonia (29.3%), gastrointestinal bleeding (10.3%), acute exacerbation of chronic kidney disease (CKD) (10.3%), and acute kidney injury (7.5%). The comparison of the laboratory findings with survival outcomes revealed that among the patients with acute exacerbation of CKD, the median NLR (p=0.043) and median CRP/Alb (p=0.021) were significantly higher in patients who died. For all of the patients, the APACHE II score was positively correlated with CRP (p<0.001) and CRP/Alb (p<0.001), negatively correlated with Alb (p<0.001), positively correlated with the NLR (p<0.001), and positively correlated with the PLR. Conclusions: The APACHE II score was significantly correlated with the CRP/Alb ratio, NLR, and PLR. The NLR and CRP/Alb ratio were statistically associated with mortality in patients hospitalized for acute exacerbation of CKD.