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An Innovative Model to Predict Pediatric Emergency Department Return Visits
Ilaria Bergese1, Simona Frigerio2, Marco Clari2
1From the Department of Pediatric Emergency, Regina Margherita Children's Hospital of Torino, and.
Insights
Classification tree models effectively predict early return visits (RVs) to pediatric emergency departments (EDs), aiding healthcare quality improvement. This machine learning approach helps identify children at high risk for readmission within 120 hours.
Area of Science:
- Pediatric Emergency Medicine
- Health Informatics
- Machine Learning in Healthcare
Background:
- Return visits (RVs) to the emergency department (ED) are a key indicator of healthcare quality.
- Predicting early RVs in pediatric populations is crucial for resource allocation and patient care.
Purpose of the Study:
- To develop and compare machine learning models for predicting early readmission risk in pediatric EDs.
- To identify key factors influencing pediatric ED return visits.
Main Methods:
- Retrospective study of pediatric patients (<15 years) with ED visits within 120 hours post-discharge.
- Development and comparison of Artificial Neural Network (ANN) and Classification Tree (CT) predictive models.
- Assessment of model performance using accuracy, sensitivity, and specificity.
Main Results:
- A Classification Tree (CT) model demonstrated superior sensitivity (79.8%) in predicting pediatric ED return visits compared to Artificial Neural Network (ANN) (6.9%).
- While ANN had higher overall accuracy (91.3%), CT's specificity was comparable (97% vs. 98.3%).
- Key predictors for RVs included time of arrival/discharge, triage priority, age, and diagnosis.
Conclusions:
- Classification Tree models offer a promising tool for identifying pediatric patients at high risk of early return visits to the ED.
- These predictive models can support ED staff in implementing strategies to prevent unnecessary readmissions.
- The findings highlight the potential of machine learning in enhancing the quality of emergency care for children.
Objectives:
Return visit (RV) to the emergency department (ED) is considered a benchmarking clinical indicator for health care quality. The purpose of this study was to develop a predictive model for early readmission risk in pediatric EDs comparing the performances of 2 learning machine algorithms.
Methods:
A retrospective study based on all children younger than 15 years spontaneously returning within 120 hours after discharge was conducted in an Italian university children's hospital between October 2012 and April 2013. Two predictive models, artificial neural network (ANN) and classification tree (CT), were used. Accuracy, specificity, and sensitivity were assessed.
Results:
A total of 28,341 patient records were evaluated. Among them, 626 patients returned to the ED within 120 hours after their initial visit. Comparing ANN and CT, our analysis has shown that CT is the best model to predict RVs. The CT model showed an overall accuracy of 81%, slightly lower than the one achieved by the ANN (91.3%), but CT outperformed ANN with regard to sensitivity (79.8% vs 6.9%, respectively). The specificity was similar for the 2 models (CT, 97% vs ANN, 98.3%). In addition, the time of arrival and discharge along with the priority code assigned in triage, age, and diagnosis play a pivotal role to identify patients at high risk of RVs.
Conclusions:
These models provide a promising predictive tool for supporting the ED staff in preventing unnecessary RVs.
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