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Establishing a Competing Risk Regression Nomogram Model for Survival Data
Published on: October 23, 2020
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A Nomogram-Based Model for Predicting the Risk of Severe Acute Cholangitis Occurrence
Jian Xu1, Zhi-Xiang Xu1, Jing Zhuang1
1Department of Gastroenterology, the Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu Province, 212000, People's Republic of China.
International Journal of General Medicine
|July 31, 2023
Summary
A new nomogram model effectively predicts severe acute cholangitis risk using Aspartate to Alanine Transaminase ratio, Neutrophil-lymphocyte ratio, C-reactive protein, and D-dimer levels. This tool aids clinicians in early risk stratification and treatment decisions for better patient outcomes.
Area of Science:
- Hepatology
- Infectious Diseases
- Clinical Prediction Models
Background:
- Acute cholangitis is a serious biliary infection with potential complications.
- Current risk assessment methods for acute cholangitis have limitations in predicting severity.
- There is a need for improved risk prediction models for acute cholangitis.
Purpose of the Study:
- To develop and validate a nomogram-based model for predicting severe acute cholangitis.
- To integrate multiple clinical and laboratory variables for enhanced risk prediction.
- To provide a tool for early identification of high-risk patients.
Main Methods:
- Retrospective data collection from 152 acute cholangitis patients (Jan 2019-Mar 2022).
- Utilized univariate and multivariate analyses to identify independent risk factors for severe disease.
- Constructed a nomogram integrating identified risk factors and validated using ROC curves, calibration curves, and DCA.
Main Results:
- Aspartate to Alanine Transaminase ratio (TR), Neutrophil-lymphocyte ratio (NLR), C-reactive protein (CRP), and D-dimer (DD) were identified as independent risk factors.
- The developed nomogram demonstrated good differentiation and calibration.
- Decision Curve Analysis showed significant clinical utility for risk stratification.
Conclusions:
- The nomogram model serves as an effective tool for predicting severe acute cholangitis risk.
- It can assist clinicians in making informed intervention and treatment decisions.
- Early identification of high-risk patients can lead to timely management.

