ArticleBMC pediatrics2025
Prediction of complications from pediatric multiple magnet ingestion: development and validation of radiologic and clinical-radiologic nomograms in a large retrospective study.
Article in BMC pediatrics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Clinical characteristics and therapeutic experiences of magnetic foreign body ingestion in children: a single-center retrospective study.Translational pediatrics · 2026Article
- Analysis of risk factors associated with surgical treatment for children with foreign body ingestion.Frontiers in pediatrics · 2026Article
Corrections and comments
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Authors and funding
10 authors.
Funding
Abstract
backgroundCurrent clinical models for pediatric multiple magnet ingestion lack accuracy in asymptomatic patients and in cases with unreliable histories, while radiologic predictors remain unvalidated. This study aimed to develop and validate two nomograms integrating radiologic (± clinical) features for individualized risk stratification.
methodThis retrospective study analyzed data from 146 pediatric patients treated at Shenzhen Children's Hospital between 2017 and 2023. Risk factors were identified using the least absolute shrinkage and selection operator (LASSO) and multivariable logistic regression. Model performance was assessed using multiple metrics, with internal validation using 1000 bootstrap resamples.
resultsComplications occurred in 57 patients (39.0%; 65.1% male; median age, 4.6 years). Nomogram R (area under the receiver operating characteristic curve [AUC]: 0.85, 95% confidence interval [CI] 0.79-0.92; internally validated AUC: 0.86) included magnets size > 25 mm, blurred magnet edges, gap between magnets, and lack of progression on serial radiographs. Nomogram C&R (AUC: 0.95, 0.92-0.99; internally validated AUC: 0.96) incorporated multiple ingestions, vomiting, abdominal pain, magnets size > 25 mm, and lack of progression on serial radiographs. Both models demonstrated good fit (Hosmer-Lemeshow test), good calibration in calibration plots, and high clinical utility. Nomogram C&R demonstrated superior net reclassification improvement and integrated discrimination improvement. Sensitivity, specificity, and accuracy were 82.5%, 70.8%, and 75.3% for Nomogram R, and 87.7%, 92.1%, and 90.4% for Nomogram C&R. Web-based tools were created for clinical use.
conclusionNomogram C&R enables accurate complication risk stratification and supports personalised clinical decision-making in pediatric multiple magnet ingestion. Future prospective validation and integration into clinical pathways are warranted to further establish its role in routine practice.
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