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March 7, 2026Frontiers in Public HealthOpen Access

Epidemiological analysis and risk factors of recurrent pulmonary tuberculosis in Western Zhejiang Province, China (2007–2024)

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Authors

YHYuanming HuMWMin WangYGYu Gao

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Overview

Retrospective cohort study identifies risk factors for recurrent TB in an aging population, suggesting targeted prevention is necessary.

Key Points

  • The research aims to analyze the epidemiological characteristics and identify risk factors for recurrent pulmonary tuberculosis in western Zhejiang Province.
  • Retrospective cohort study utilizing surveillance data from the Tuberculosis Information Management System in Quzhou from 2007 to 2024.
  • Analysis of recurrence-free intervals to determine temporal patterns of recurrence.
  • Use of multivariable Cox proportional hazards regression models to identify independent risk factors and predictors of retreatment outcomes.
  • Out of 28,458 patients, 897 (3.15%) experienced recurrence, primarily affecting males (79.2%) and farmers (80.3%).
  • Recurrence-free intervals decreased from a median of 804 days for the first recurrence to 495 days for the second (p < 0.001).
  • 48.9% of recurrences occurred within the first 2 years post-treatment.
  • Advanced age (≥65 years) was identified as a significant independent risk factor for recurrence and adverse retreatment outcomes.

Cite This Study

Hu et al. (2026) studied this question.

synapsesocial.com/papers/69abc0b85af8044f7a4e9588https://doi.org/10.3389/fpubh.2026.1777279
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