Abstract
Purpose
To investigate the factors influencing the outcome of radioactive iodine (RAI) treatment in intermediate- to high-risk patients with differentiated thyroid carcinoma (DTC).
Methods
We enrolled 553 DTC patients who underwent total thyroidectomy and categorized them into two groups according to their response to RAI therapy: excellent response (ER) and non-ER groups. Clinical and pathological characteristics of the patients were collected and retrospectively analyzed using univariate and multivariate binary logistic regression. Receiver operating characteristic (ROC) curves and diagnostic cutoff values were analyzed to assess the predictive value of important quantitative influences on 131I treatment outcomes. A new nomogram model was developed based on the above independent risk factors. R software was used to develop nomograms with all the independent prognostic factors included.
Results
The multivariate analysis showed that lymph node metastasis (LNM), stimulated thyroglobulin (sTg), thyroglobulin antibodies (TgAb), and sTg/thyroid-stimulating hormone (TSH) were significantly associated with non-ER of DTC patients. In the training set, the consistency index (C-index) of the new column line graph was 0.868 (95% CI 0.865-0.871).
Conclusion
We proposed a new nomogram to predict non-ER for DTC with excellent discrimination and calibration.
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Data availability
The data used to support the findings of this study are available from the corresponding author upon request.
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Acknowledgements
The authors acknowledged the facilities provided by the First Affiliated Hospital of Soochow University and Suzhou Science and Technology Town Hospital.
Author contributions
R.W. designed the study, analyzed the data, and wrote the manuscript. C.C. and M.Z. collected the data. Y.Y. and B.Z. designed the study and revised the manuscript. All authors read and approved the final manuscript.
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Wen, R., Zhao, M., Chen, C. et al. A novel nomogram integrated with preablation stimulated thyroglobulin and thyroglobulin/thyroid-stimulating hormone ratio to predict the therapeutic response of intermediate‑ and high‑risk differentiated thyroid cancer patients: a bi-center retrospective study. Endocrine 84, 989–998 (2024). https://doi.org/10.1007/s12020-023-03625-y
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DOI: https://doi.org/10.1007/s12020-023-03625-y