Age reporting for the oldest old in the Brazilian COVID-19 vaccination database
What can we learn from it?
About
This page accompanies the paper:
Turra, Cássio M., Fernando Fernandes, Júlia Almeida Calazans, and Marília R. Nepomuceno. 2023. “Age Reporting in the Brazilian COVID-19 Vaccination Database: What Can We Learn from It?” Demographic Research 48 (28): 829–848. DOI: 10.4054/DemRes.2023.48.28.
Brazil administered 388 million COVID-19 vaccine doses. This study examines the quality of age reporting in the national vaccination database—comparing 387 million records with census data, demographic projections, and high-quality data from Sweden.
This project provides the R code and reference data for the first study comparing population estimates for the oldest old using administrative vaccination data and census data in Brazil.
Figures
Age-quality indicators: Brazil vs. Sweden

Data
The R code and reference data files are available for download from the project repository. Reference extracts for IBGE, United Nations, IPUMS, Human Mortality Database, and CONASS are in data-raw/.
The main microdata file — 387,750,333 vaccination records, approximately 190 GB — is archived at and should be downloaded into
data-raw/.
Variables
| Script | Purpose | Output |
|---|---|---|
| 1-covid-19-datasus-vaccine.R | Read, clean, tabulate, and analyze data | data-treated/ |
| 2-covid-19-datasus-vaccine-plots.R | Reproduce figures | output/ |
Sources
Questions
For problems or questions, please open an issue.
License
This site is licensed under CC BY 4.0 for data and MIT for code.