ArticleAmerican journal of translational research2025
Construction and validation of a nomogram model to predict mortality risk in patients with acute diquat poisoning.
Article in American journal of translational research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectiveTo analyze the risk factors for mortality in patients with acute diquat (DQ) poisoning and construct a nomogram prediction model for clinical assessment and treatment.
methodsA retrospective analysis was performed on the clinical data of 110 patients with acute DQ poisoning who were admitted from March 2022 to April 2024. The enrolled patients were divided into a training set of 80 cases and a validation set of 30 cases. A survival group and a death group were established, with death within 30 days as the endpoint. Among these, in the training group, there were 67 cases in the survival group and 13 cases in the death group. This study further analyzed and compared the baseline and clinical data of the two groups of patients, screened potential risk factors using Least absolute shrinkage and selection operator (LASSO) regression, and determined independent risk factors through multivariate logistic regression analysis. A nomogram predictive model was constructed and validated based on the validation set.
resultsUsing LASSO regression, this study screened 13 possible risk factors. The dosage of DQ, gastric lavage rate, medication to hospital admission time, alanine aminotransferase, aspartate aminotransferase, blood potassium, creatinine, urea, partial pressure of oxygen, urinary DQ concentration, Systemic Inflammatory Response Syndrome (SIRS) score, Sequential Organ Failure Assessment (SOFA) score, and Acute Physiology and Chronic Health Evaluation (APACHE) II score were found to predict death significantly after acute DQ poisoning. This study further constructed the nomogram predictive model and validated the predictive performance of this model by using a validation set. The Area Under the Curve (AUC) of the training set was 0.961, and that of the validation set was 0.947. The calibration curve of the training and validation sets showed good prediction results of the model, and the calibration curve tended to approach the ideal curve.
conclusionThis study constructed a nomogram model to predict mortality risk in patients with acute DQ poisoning. Clinicians will have a clearer and intuitive understanding of the prognosis of patients, so as to enhance the treatment of patients and optimize the allocation of medical resources.
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