Necrotizing enterocolitis: risk factors and predictive modeling in a cohort of preterm infants. A case-control study - Summary - MDSpire

Necrotizing enterocolitis: risk factors and predictive modeling in a cohort of preterm infants. A case-control study

  • By

  • T. Pérez-Oliver

  • A. Pinilla-Gonzalez

  • M. Gormaz

  • J. Kuligowski

  • E. Serna

  • L. Torrejón-Rodríguez

  • I. Lara-Cantón

  • A. Cayuela-Hernández

  • M. Vento

  • A. Parra-Llorca

  • M. Cernada

  • July 16, 2026

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Objective:

To identify perinatal and postnatal risk factors associated with NEC in very preterm infants and to develop a predictive model for clinical use.

Approach:
  • Study Design: Retrospective case-control study including infants <32 weeks’ gestation and <1,500 g birth weight admitted to a level III NICU between 2018 and 2022.
  • Data Analysis: Multivariable logistic regression was used to identify independent predictors of NEC and to generate a nomogram.
Key Findings:
  • 46 out of 354 eligible infants (13%) developed NEC.
  • NEC was associated with lower gestational age and birth weight, prolonged rupture of membranes, maternal and neonatal antibiotic exposure, umbilical arterial catheters, vasoactive drugs, feeding intolerance, anaemia, and platelet transfusion.
  • Early intravenous antibiotic administration within the first 24 h of life (OR: 1.91) and placental abruption (OR: 2.72) were independent risk factors for NEC.
  • The predictive model demonstrated moderate discriminatory ability (AUC = 0.73).
Interpretation:

The proposed nomogram may support early risk stratification and closer clinical surveillance using readily available clinical variables.

Limitations:
  • The study is retrospective and conducted at a single center, which may limit generalizability.
  • Further multicentre studies are required to validate the predictive tool.
Conclusion:

Early intravenous antibiotic administration and placental abruption were independently associated with NEC in very preterm infants.

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