Cardiovascular

Development of a machine learning-based multicenter study for predicting severe intraventricular hemorrhage in preterm infants using perinatal variables.

TL;DR

A logistic regression model using six readily available perinatal variables provides good discrimination and calibration for predicting severe intraventricular hemorrhage in preterm infants, enabling immediate risk stratification at birth.

Key Findings

The incidence of severe intraventricular hemorrhage (SIVH) among preterm infants in this multicenter cohort was 6.66%.

  • Total cohort included 3,320 preterm infants with gestational age ≤34 weeks
  • All infants required noninvasive or invasive respiratory support
  • Data were drawn from the Jiangsu Neonatal Respiratory Failure Collaborative Network (2019-2021)
  • Study used a multicenter retrospective cohort design

Six perinatal predictors of SIVH were identified: gestational age, birth weight, endotracheal intubation in the delivery room, chest compressions in the delivery room, surfactant administration in the delivery room, and chorioamnionitis.

  • All six variables are readily available at or before birth
  • These variables are prenatal and intrapartum in nature, requiring no postnatal diagnostic data
  • The selection of predictors was derived from training data split 7:3 into training and validation sets
  • The identified predictors allow for risk stratification immediately at birth

Logistic regression achieved the highest mean AUC among eight machine learning algorithms evaluated during 10-fold cross-validation in the training set.

  • Eight machine learning algorithms were compared in total
  • Bootstrap internal validation of the logistic regression model yielded a corrected AUC of 0.809
  • Performance was assessed by AUC, calibration, and decision curve analysis
  • Logistic regression outperformed all other tested algorithms in the training phase

The logistic regression model demonstrated the best discriminative ability among all eight algorithms in the independent hold-out validation set, with an AUC of 0.804.

  • Hold-out validation set comprised 30% of the original 3,320-infant dataset
  • The model showed satisfactory calibration in the validation set
  • Decision curve analysis indicated favorable net benefit
  • AUC of 0.804 indicates good discrimination between infants who did and did not develop SIVH

The logistic regression model maintained robust performance in temporal validation using an independent cohort, with an AUC of 0.822.

  • Temporal validation was performed using an independent cohort separate from the primary dataset
  • AUC in temporal validation (0.822) was comparable to or exceeded internal validation AUC (0.809)
  • Geographic subgroup analyses yielded AUC values ranging from 0.729 to 0.885
  • Sensitivity analyses confirmed robustness across different settings and time periods

An online interactive tool was developed to facilitate clinical application of the logistic regression model.

  • The tool is designed to enable immediate bedside risk stratification at birth
  • It incorporates the six identified perinatal predictor variables
  • The tool targets SIVH occurring during the neonatal hospitalization period
  • Development of the tool was aimed at translating the model into practical clinical use

What This Means

This research suggests that a relatively simple statistical model using only six pieces of information available at or shortly after birth can accurately predict which premature babies are at high risk for severe bleeding in the brain (severe intraventricular hemorrhage, or SIVH). The six factors used are: how early the baby was born (gestational age), birth weight, whether a breathing tube was inserted in the delivery room, whether chest compressions were needed during resuscitation, whether a lung-coating medicine called surfactant was given in the delivery room, and whether the placenta showed signs of infection (chorioamnionitis). Among more than 3,300 premature infants studied across multiple hospitals in China, about 1 in 15 developed this serious condition. The study tested eight different types of computer-based prediction models and found that a traditional logistic regression model performed best, achieving accuracy scores (AUC) of approximately 0.80–0.82 across different validation tests, including testing on data from a completely separate time period and across different geographic locations. This level of accuracy indicates good predictive ability, and the model was also well-calibrated, meaning its predicted probabilities closely matched actual outcomes. This research suggests that clinicians could use these six routinely collected pieces of information to identify premature infants at high risk for severe brain bleeding immediately at birth, without waiting for postnatal test results. An online tool was created to make this prediction easy to apply in clinical settings. Early identification of at-risk infants could potentially allow medical teams to take preventive or monitoring measures sooner, though further research would be needed to determine how such predictions should guide clinical care.

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Citation

Shen F, Jin C, Wang F, Cheng R, Rong H, Yang Y, et al.. (2026). Development of a machine learning-based multicenter study for predicting severe intraventricular hemorrhage in preterm infants using perinatal variables.. Frontiers in neurology. https://doi.org/10.3389/fneur.2026.1953566