Multi-Task Machine Learning for Prenatal Risk Stratification: Integrating Biomarkers, Maternal Age, and Ultrasound Measurements to Predict the Risk of Down Syndrome, Trisomy 18, Trisomy 13, and Neural Tube Defects
Research Article  ·  Published: 06 July 2025
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Frontiers in Biomedical Signal Processing
Volume 1, Issue 1, 2026: 24-36
Research Article Open Access

Multi-Task Machine Learning for Prenatal Risk Stratification: Integrating Biomarkers, Maternal Age, and Ultrasound Measurements to Predict the Risk of Down Syndrome, Trisomy 18, Trisomy 13, and Neural Tube Defects

1 Department of Computing, School of Digital, Technologies and Arts, Staffordshire University, Stoke-on-Trent ST4 2DE, United Kingdom
2 Student Research Committee, Urmia University of Medical Sciences, Urmia‚ Iran
3 Hull York Medical School, University of York, York, United Kingdom
4 School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
5 Department of Genetics and Immunology, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
* Corresponding Author: Alireza Soleimani Mamalo, [email protected]
Volume 1, Issue 1
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Article Information

Abstract

This study developed a machine learning model for early risk stratification of Down syndrome by integrating maternal serum biomarkers and ultrasound measurements. A retrospective multicentre dataset was used, including maternal age, AFP, HCG, INHIBIN-A, and ultrasound parameters (NT, CRL). After imputing missing data and engineering features (e.g., Age_NT_interaction), a Gradient Boosting Machine (GBM) was trained and evaluated using AUROC, precision, recall, and F1-score. The model achieved high performance (AUROC: 0.9921; precision: 1.00; F1-score: 0.91; accuracy: 0.97). SHAP analysis identified key interactions—particularly Age_NT, Age_HCG, and Age_PAPP-A—as major contributors. High maternal age combined with elevated HCG or low PAPP-A was linked to increased risk, aligning with clinical knowledge. The model offers a highly accurate and interpretable approach for Down syndrome risk prediction, supporting personalized, data-driven prenatal care. Prospective validation and clinical integration are recommended.

Graphical Abstract

Multi-Task Machine Learning for Prenatal Risk Stratification: Integrating Biomarkers, Maternal Age, and Ultrasound Measurements to Predict the Risk of Down Syndrome, Trisomy 18, Trisomy 13, and Neural Tube Defects

Keywords

down syndrome machine learning prenatal screening SHAP analysis maternal biomarkers

Data Availability Statement

The data that support the findings of this study are available from the corresponding author, Seyed-Ali Sadegh-Zadeh, upon reasonable request.

Funding

This work was supported without any funding.

Conflicts of Interest

The authors declare no conflicts of interest.

Ethical Approval and Consent to Participate

This study was conducted in accordance with the ethical principles and national norms and standards for conducting medical research in Iran, as approved by the Research Ethics Committee of Urmia University of Medical Sciences (Approval ID: IR.UMSU.REC.1403.234, Approval Date: 2024-10-30). Written informed consent was obtained from all participants. The researchers ensured compliance with all professional and legal requirements, maintaining the confidentiality and anonymity of participant data.

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Cite This Article

APA Style
Sadegh-Zadeh, S. A., Mamalo, A. S., Saadat, S., Gargari, S. S., Barati, M. A., Mehranfar, S., & Naderi, Z. (2025). Multi-Task Machine Learning for Prenatal Risk Stratification: Integrating Biomarkers, Maternal Age, and Ultrasound Measurements to Predict the Risk of Down Syndrome, Trisomy 18, Trisomy 13, and Neural Tube Defects. Frontiers in Biomedical Signal Processing, 1(1), 24–36. https://doi.org/10.62762/FBSP.2025.954863
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TY  - JOUR
AU  - Sadegh-Zadeh, Seyed-Ali
AU  - Mamalo, Alireza Soleimani
AU  - Saadat, Shayan
AU  - Gargari, Sahar Sayyadi
AU  - Barati, Mohammad Amin
AU  - Mehranfar, Sahar
AU  - Naderi, Zahra
PY  - 2025
DA  - 2025/07/06
TI  - Multi-Task Machine Learning for Prenatal Risk Stratification: Integrating Biomarkers, Maternal Age, and Ultrasound Measurements to Predict the Risk of Down Syndrome, Trisomy 18, Trisomy 13, and Neural Tube Defects
JO  - Frontiers in Biomedical Signal Processing
T2  - Frontiers in Biomedical Signal Processing
JF  - Frontiers in Biomedical Signal Processing
VL  - 1
IS  - 1
SP  - 24
EP  - 36
DO  - 10.62762/FBSP.2025.954863
UR  - https://www.icck.org/article/abs/FBSP.2025.954863
KW  - down syndrome
KW  - machine learning
KW  - prenatal screening
KW  - SHAP analysis
KW  - maternal biomarkers
AB  - This study developed a machine learning model for early risk stratification of Down syndrome by integrating maternal serum biomarkers and ultrasound measurements. A retrospective multicentre dataset was used, including maternal age, AFP, HCG, INHIBIN-A, and ultrasound parameters (NT, CRL). After imputing missing data and engineering features (e.g., Age_NT_interaction), a Gradient Boosting Machine (GBM) was trained and evaluated using AUROC, precision, recall, and F1-score. The model achieved high performance (AUROC: 0.9921; precision: 1.00; F1-score: 0.91; accuracy: 0.97). SHAP analysis identified key interactions—particularly Age_NT, Age_HCG, and Age_PAPP-A—as major contributors. High maternal age combined with elevated HCG or low PAPP-A was linked to increased risk, aligning with clinical knowledge. The model offers a highly accurate and interpretable approach for Down syndrome risk prediction, supporting personalized, data-driven prenatal care. Prospective validation and clinical integration are recommended.
SN  - 3071-2912
PB  - Institute of Central Computation and Knowledge
LA  - English
ER  - 
BibTeX Format
Compatible with LaTeX, BibTeX, and other reference managers
@article{SadeghZadeh2025MultiTask,
  author = {Seyed-Ali Sadegh-Zadeh and Alireza Soleimani Mamalo and Shayan Saadat and Sahar Sayyadi Gargari and Mohammad Amin Barati and Sahar Mehranfar and Zahra Naderi},
  title = {Multi-Task Machine Learning for Prenatal Risk Stratification: Integrating Biomarkers, Maternal Age, and Ultrasound Measurements to Predict the Risk of Down Syndrome, Trisomy 18, Trisomy 13, and Neural Tube Defects},
  journal = {Frontiers in Biomedical Signal Processing},
  year = {2025},
  volume = {1},
  number = {1},
  pages = {24-36},
  doi = {10.62762/FBSP.2025.954863},
  url = {https://www.icck.org/article/abs/FBSP.2025.954863},
  abstract = {This study developed a machine learning model for early risk stratification of Down syndrome by integrating maternal serum biomarkers and ultrasound measurements. A retrospective multicentre dataset was used, including maternal age, AFP, HCG, INHIBIN-A, and ultrasound parameters (NT, CRL). After imputing missing data and engineering features (e.g., Age\_NT\_interaction), a Gradient Boosting Machine (GBM) was trained and evaluated using AUROC, precision, recall, and F1-score. The model achieved high performance (AUROC: 0.9921; precision: 1.00; F1-score: 0.91; accuracy: 0.97). SHAP analysis identified key interactions—particularly Age\_NT, Age\_HCG, and Age\_PAPP-A—as major contributors. High maternal age combined with elevated HCG or low PAPP-A was linked to increased risk, aligning with clinical knowledge. The model offers a highly accurate and interpretable approach for Down syndrome risk prediction, supporting personalized, data-driven prenatal care. Prospective validation and clinical integration are recommended.},
  keywords = {down syndrome, machine learning, prenatal screening, SHAP analysis, maternal biomarkers},
  issn = {3071-2912},
  publisher = {Institute of Central Computation and Knowledge}
}

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