Ideal serum non-ceruloplasmin bound copper prediction for long-term treated patients with Wilson disease: a nomogram model

PurposeThis study aimed to explore the factors associated with the optimal serum non-ceruloplasmin bound copper (NCBC) level and develop a flexible predictive model to guide lifelong therapy in Wilson disease (WD) and delay disease progression.MethodsWe retrospectively collected clinical data from 1...

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Main Authors: Zhuang Tao, Pingping Yang, Jiafeng Zhou, Rui Wang, Zhenzhen Jiang, Hui Han, Meixia Wang
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-11-01
Series:Frontiers in Medicine
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmed.2023.1275242/full
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author Zhuang Tao
Pingping Yang
Jiafeng Zhou
Rui Wang
Zhenzhen Jiang
Hui Han
Meixia Wang
author_facet Zhuang Tao
Pingping Yang
Jiafeng Zhou
Rui Wang
Zhenzhen Jiang
Hui Han
Meixia Wang
author_sort Zhuang Tao
collection DOAJ
description PurposeThis study aimed to explore the factors associated with the optimal serum non-ceruloplasmin bound copper (NCBC) level and develop a flexible predictive model to guide lifelong therapy in Wilson disease (WD) and delay disease progression.MethodsWe retrospectively collected clinical data from 144 patients hospitalized in the Encephalopathy Center of the first affiliated hospital of Anhui University of Chinese Medicine between May 2012 and April 2023. Independent variables were selected using variate COX and LASSO regressions, followed by multivariate COX regression analysis. A predictive nomogram was constructed and validated using the concordance index (C-index), calibration curves, and clinical decision curve analysis, of which nomogram pictures were utilized for model visualization.ResultsA total of 61 (42.36%) patients were included, with an average treatment duration of 55.0 (range, 28.0, 97.0) months. Multivariate regression analysis identified several independent risk factors for serum NCBC level, including age of diagnosis, clinical classification, laminin liver stiffness measurement, and copper to zinc ratio in 24-h urinary excretion. The C-index indicated moderate discriminative ability (48 months: 0.829, 60 months: 0.811, and 72 months: 0.819). The calibration curves showed good consistency and calibration; clinical decision curve analysis demonstrated clinically beneficial threshold probabilities at different time intervals.ConclusionThe predictive nomogram model can predict serum NCBC level; consequently, we recommend its use in clinical practice to delay disease progression and improve the clinical prognosis of WD.
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spelling doaj.art-3c67b058c2e04d42a3f43a22563fc1af2023-11-03T10:34:44ZengFrontiers Media S.A.Frontiers in Medicine2296-858X2023-11-011010.3389/fmed.2023.12752421275242Ideal serum non-ceruloplasmin bound copper prediction for long-term treated patients with Wilson disease: a nomogram modelZhuang Tao0Pingping Yang1Jiafeng Zhou2Rui Wang3Zhenzhen Jiang4Hui Han5Meixia Wang6Encephalopathy Center, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, ChinaGraduate School, Anhui University of Chinese Medicine, Hefei, Anhui, ChinaGraduate School, Anhui University of Chinese Medicine, Hefei, Anhui, ChinaGraduate School, Anhui University of Chinese Medicine, Hefei, Anhui, ChinaGraduate School, Anhui University of Chinese Medicine, Hefei, Anhui, ChinaGraduate School, Anhui University of Chinese Medicine, Hefei, Anhui, ChinaEncephalopathy Center, The First Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, ChinaPurposeThis study aimed to explore the factors associated with the optimal serum non-ceruloplasmin bound copper (NCBC) level and develop a flexible predictive model to guide lifelong therapy in Wilson disease (WD) and delay disease progression.MethodsWe retrospectively collected clinical data from 144 patients hospitalized in the Encephalopathy Center of the first affiliated hospital of Anhui University of Chinese Medicine between May 2012 and April 2023. Independent variables were selected using variate COX and LASSO regressions, followed by multivariate COX regression analysis. A predictive nomogram was constructed and validated using the concordance index (C-index), calibration curves, and clinical decision curve analysis, of which nomogram pictures were utilized for model visualization.ResultsA total of 61 (42.36%) patients were included, with an average treatment duration of 55.0 (range, 28.0, 97.0) months. Multivariate regression analysis identified several independent risk factors for serum NCBC level, including age of diagnosis, clinical classification, laminin liver stiffness measurement, and copper to zinc ratio in 24-h urinary excretion. The C-index indicated moderate discriminative ability (48 months: 0.829, 60 months: 0.811, and 72 months: 0.819). The calibration curves showed good consistency and calibration; clinical decision curve analysis demonstrated clinically beneficial threshold probabilities at different time intervals.ConclusionThe predictive nomogram model can predict serum NCBC level; consequently, we recommend its use in clinical practice to delay disease progression and improve the clinical prognosis of WD.https://www.frontiersin.org/articles/10.3389/fmed.2023.1275242/fullWilson diseaseserum NCBCclinical predictive modelretrospective studyconcordance index
spellingShingle Zhuang Tao
Pingping Yang
Jiafeng Zhou
Rui Wang
Zhenzhen Jiang
Hui Han
Meixia Wang
Ideal serum non-ceruloplasmin bound copper prediction for long-term treated patients with Wilson disease: a nomogram model
Frontiers in Medicine
Wilson disease
serum NCBC
clinical predictive model
retrospective study
concordance index
title Ideal serum non-ceruloplasmin bound copper prediction for long-term treated patients with Wilson disease: a nomogram model
title_full Ideal serum non-ceruloplasmin bound copper prediction for long-term treated patients with Wilson disease: a nomogram model
title_fullStr Ideal serum non-ceruloplasmin bound copper prediction for long-term treated patients with Wilson disease: a nomogram model
title_full_unstemmed Ideal serum non-ceruloplasmin bound copper prediction for long-term treated patients with Wilson disease: a nomogram model
title_short Ideal serum non-ceruloplasmin bound copper prediction for long-term treated patients with Wilson disease: a nomogram model
title_sort ideal serum non ceruloplasmin bound copper prediction for long term treated patients with wilson disease a nomogram model
topic Wilson disease
serum NCBC
clinical predictive model
retrospective study
concordance index
url https://www.frontiersin.org/articles/10.3389/fmed.2023.1275242/full
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