A systematic review and meta-analysis of lung cancer risk prediction models
DOI:
https://doi.org/10.2340/1651-226X.2025.42529Keywords:
Lung cancer, risk prediction model, screening, early detection, reviewAbstract
Background: Lung cancer (LC) remains the leading cause of cancer-related mortality worldwide. Early detection through targeted screening significantly improves patient outcomes. However, identifying high-risk individuals remains a critical challenge.
Purpose: This systematic review evaluates externally validated LC risk prediction models to assess their performance and potential applicability in screening strategies.
Methods: Of the 11,805 initial studies, 66 met inclusion criteria and 38 published mainly between 2020 and 2024 were included in the final analysis. Model methodologies, validation approaches, and performance metrics were extracted and compared.
Results: The review identified 18 models utilising conventional machine learning, six employing neural networks, and 14 comparing different predictive frameworks. The Prostate Lung Colorectal and Ovarian Cancer Screening Trial (PLCOm2012) demonstrated superior sensitivity across diverse populations, while newer models, such as Optimized Early Warning model for Lung cancer risk (OWL) and CanPredict, showed promising results. However, differences in population demographics and healthcare systems may limit the generalisability of these models.
Interpretation: While LC risk prediction models have advanced, their applicability to specific healthcare systems, such as Finland’s, requires further adaptation and validation. Future research should focus on optimising these models for local contexts to improve clinical impact and cost-effectiveness in targeted screening programmes.
Systematic review registration: PROSPERO CRD42022321391.
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Copyright (c) 2025 Ghida Khalife, Matilda Nilsson, Lotta Peltola, Juho Waris, Antti Jekunen, Riikka-Leena Leskelä, Heidi Andersén, Mikko Nuutinen , Eija Heikkilä, Susanna Nurmi-Rantala, Paulus Torkki
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