Comparison of urine albumin creatinine ratio with the pediatric index of mortality 2 score for prediction of pediatric intensive care unit outcomes

Ir J Med Sci. 2021 Nov;190(4):1481-1485. doi: 10.1007/s11845-021-02755-4. Epub 2021 Sep 9.

Abstract

Background: Predicting morbidity and mortality in a pediatric intensive care unit (PICU) is of extreme importance to make precise decisions for better outcomes.

Aim: We compared the urine albumin creatinine ratio (ACR) with the established PICU score, pediatric index of mortality 2 (PIM 2) for predicting PICU outcomes.

Methods: This cross-sectional study enrolled 67 patients admitted to PICU with systemic inflammatory response syndrome. Urine ACR was estimated on admission, and PIM 2 score was calculated. ACR was compared with PIM 2 for PICU outcome measures: the need for inotropes, development of multiple organ dysfunction syndrome (MODS), duration of PICU stay, and survival.

Results: Microalbuminuria was found in 77.6% of patients with a median ACR of 80 mg/g. ACR showed a significant association with the need for inotropes (p < 0.001), MODS (p = 0.001), and significant correlation to PICU stay (p 0.001, rho = 0.361). The area under the receiver operating characteristic curve for ACR (0.798) was comparable to that of PIM 2 (0.896). The cutoff value of ACR derived to predict mortality was 110 mg/g. The study subjects were divided into 2 groups: below cutoff and above the cutoff. Outcome variables, inotrope use, MODS, mortality, and PICU stay compared between these subgroups, were statistically significant.

Conclusion: ACR is a good predictor of PICU outcomes and is comparable to PIM 2 for mortality prediction.

Keywords: Critical illness; Microalbuminuria; Mortality; Multiple organ dysfunction syndrome; Prognosis.

MeSH terms

  • Albumins
  • Albuminuria*
  • Child
  • Creatinine / urine*
  • Cross-Sectional Studies
  • Hospital Mortality*
  • Humans
  • Infant
  • Intensive Care Units, Pediatric*
  • Prospective Studies

Substances

  • Albumins
  • Creatinine