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September 10, 2025Epidemiologia e Serviços de SaúdeOpen Access

Trends in dengue incidence and lethality: interrupted time series analysis, Brazil, 2001-2022

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Authors

TLTatiane Fernandes Portal de LimaHPHenry Maia PeixotoLFLúcia Rolim Santana de Freitas

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Overview

Interrupted time series analysis reveals changes in dengue incidence and lethality across Brazil's macro-regions.

Key Points

  • Dengue incidence rates remained stationary from 2001 to 2009, with no detectable effects after 2010.
  • Fatality rates increased between 2001 and 2009, then showed reductions of up to 30% in several regions from 2010 to 2022.
  • The analysis utilized Prais-Winsten generalized linear regression to evaluate trends and variations over time.
  • Findings underscore the need for further investigation into the effectiveness of dengue control measures since 2010.

Cite This Study

Lima et al. (2025) studied this question.

synapsesocial.com/papers/68c1d7ee54b1d3bfb60f9fbdhttps://doi.org/10.1590/s2237-96222025v34e20240424.en
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