YANG Shuang,JIANG Hongxia,ZHU Minghui,et al.Construction and validation of the prediction model for survival prognosis of idiopathic pulmonary fibrosis[J].Medical Journal of Wuhan University,2026,47(10):1372-1381.
YANG Shuang,JIANG Hongxia,ZHU Minghui,et al.Construction and validation of the prediction model for survival prognosis of idiopathic pulmonary fibrosis[J].Medical Journal of Wuhan University,2026,47(10):1372-1381.DOI: 10.14188/j.1671-8852.2026.0806.
Construction and validation of the prediction model for survival prognosis of idiopathic pulmonary fibrosis
To explore the predictive value of multiple hematological and biochemical indicators for overall survival in patients with idiopathic pulmonary fibrosis (IPF)
and to establish a nomogram model to achieve individualized prognostic stratification.
Methods
2
This retrospective cohort study enrolled 894 patients diagnosed with IPF admitted to the Department of Respiratory and Critical Care Medicine
Zhongnan Hospital of Wuhan University from January 2014 to August 2024
and collected relevant clinical indicators. A total of 297 patients were finally included in the analysis. The enrolled subjects were randomly divided into a training cohort (208 patients
70%) and a validation cohort (89 patients
30%). Based on the training cohort
Cox regression analysis
combined with clinical significance evaluation and collinearity assessment
was performed to construct a nomogram model
whose predictive performance was subsequently validated.
Results
2
A nomogram model for patients with IPF was constructed
and time⁃dependent receiver operating characteristic (ROC) curve analysis was performed. The results showed that the area under the curve (
AUC
) values for 1⁃
3⁃
and 5⁃year overall survival in the training cohort were 0.824
0.706
and 0.666
respectively. Due to the limited sample size of the validation cohort
the AUC of 1⁃year OS could not be reliably estimated; the AUC values for 3⁃ and 5⁃year OS were 0.652 and 0.596
respectively. The C⁃index of the nomogram was higher than that of the Gender⁃Age⁃Physiology (GAP) model. In the training cohort
the C⁃indexes of the nomogram model and GAP model were 0.653 and 0.564
respectively. In the validation cohort
the C⁃indexes of the nomogram model and GAP model were 0.593 and 0.563
respectively
demonstrating that the nomogram model possessed better predictive ability compared with the GAP model.
Conclusion
2
The established nomogram model enables individualized risk assessment of overall survival in IPF patients. Compared with the traditional GAP scoring system
this model has better predictive performance
which is expected to be applied in clinical risk stratification and follow‑up decision‑making
and has potential clinical value.
关键词
Keywords
references
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