ArticleJournal of epidemiology and global health2026
A Novel Clinical Nomogram for Predicting Unfavorable Tuberculosis Treatment Outcomes: A Logistic Regression Risk Model.
Article in Journal of epidemiology and global health, 2026. 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
introductionCommunicable diseases remain one of the major public health challenges in Sub-Saharan Africa, with tuberculosis (TB) ranking among the leading causes of morbidity, mortality, and significant economic impact. Mozambique is among the countries with the highest TB burden in the region. This study aimed to develop a clinical prediction model, in the form of a nomogram, to predict the probability of unfavorable treatment outcomes (UTO) among TB patients treated at a district health center in Nacarôa, Nampula Province, Mozambique.
methodsA retrospective cohort study was conducted using secondary data from patients diagnosed and treated for TB between 2021 and 2023. A multivariable logistic regression analysis was performed to identify factors associated with UTO, and a predictive nomogram was subsequently constructed. Model performance was assessed using the receiver operating characteristic (ROC) curve, accuracy, Brier Score (BS), calibration plot, and the Hosmer–Lemeshow goodness-of-fit test. Clinical utility was evaluated through decision curve analysis (DCA) and clinical impact curves.
resultsUTO were observed in 26.8% of patients (55/205). The multivariable analysis identified as significant predictors of UTO being previously treated for TB, not receiving directly observed therapy (DOT), having a clinical or radiological diagnosis, and having a positive smear microscopy result. The nomogram showed good performance, with an AUC of 83.2% and an accuracy of 84.9%. The Hosmer–Lemeshow test indicated good model fit (p = 0.132), and the calibration plot demonstrated strong agreement between predicted and observed outcomes (BS = 0.119). DCA and clinical impact analyses confirmed the model’s potential to support and optimize clinical decision-making in TB management.
conclusionThe nomogram developed in this study represents a promising and practical tool for estimating the individual risk of UTO in tuberculosis care and may contribute to improved clinical management and resource allocation in high-burden settings.
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