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Decrease in compulsory notifications registered by the Brazilian National Hospital Epidemiological Surveillance
Janaína Sallas1, Guilherme Almeida Elidio1, Giovana Ferreira Costacurta2
1Universidade de Brasília, Faculdade de Ciências da Saúde, Brasília, DF, Brasil.
Summary
The COVID-19 pandemic significantly decreased the reporting of notifiable diseases and public health events in Brazil. Compulsorily notifiable disease data collection by RENAVEH saw a substantial drop in 2020.
Area of Science:
- Public Health
- Epidemiology
- Infectious Diseases
Background:
- Compulsorily notifiable diseases, health conditions, and public health events (DAEs) are crucial indicators of population health.
- The COVID-19 pandemic presented unprecedented challenges to public health surveillance systems globally.
- Understanding the impact of the pandemic on routine disease reporting is vital for assessing surveillance system resilience.
Purpose of the Study:
- To describe the trends of compulsorily notifiable diseases, health conditions, and public health events (DAEs) registered by the National Hospital Epidemiological Surveillance Network (RENAVEH) in Brazil.
- To analyze changes in DAE reporting before and during the COVID-19 pandemic.
Main Methods:
- A descriptive ecological study was conducted.
- Data were sourced from the Notifiable Health Conditions Information System (SINAN) in Brazil.
- The study period spanned from Epidemiological Week 1 of 2017 to EW 52 of 2020.
Main Results:
- A total of 1,258,455 DAE records were registered between 2017 and 2020.
- Notifications in 2020 significantly decreased to 225,081 (17.9% of the total), a reduction of 146,340 records compared to 2019.
- Temporal analysis revealed a decline of over 1,000 notified records per epidemiological week starting from EW 12 of 2020.
Conclusions:
- There was an overall decrease in compulsorily notifiable DAEs registered by RENAVEH in Brazil during the analyzed period.
- The year 2020 showed a particularly marked reduction in the notification of these important public health events.
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