Data availability in articles published in Epidemiologia e Serviços de Saúde: a cross-sectional study, 2025

To assess the frequency and factors associated with data sharing in articles published in Epidemiologia e Serviços de Saúde.

A cross-sectional study was conducted based on articles published in 2025 in the journal. Data were considered available when the statement reported deposit in a repository with persistent identifiers. Descriptive statistics for the variables and the odds ratio (OR) with 95% confidence intervals (95%CI) for data availability, according to variables with statistical significance, were calculated.

Of 124 articles published, data sharing occurred in 35 (28.2%; 95%CI 21.1; 36.7%). Most articles were submitted in 2024 (87.1%) and accepted in 2025 (76.6%), the year with greater data availability (p-value 0.017). The duration of peer review was longer in articles that shared data (median: 168 days; interquartile range: 130; 221 days) than in those without sharing (median: 135 days; interquartile range: 103; 172 days; p-value 0.025). Articles accepted in 2025 were more likely to share data (OR 4.40; 95%CI 1.41; 19.44; p-value 0.022), as were those with longer peer-review duration, in days (OR 1.01; 95%CI 1.00; 1.01; p-value 0.043). No factor remained associated with the outcome in the adjusted analysis.

Over a quarter of the articles published in the journal shared their data, which was influenced by editorial factors. The requirement for a statement showed a limited effect on data sharing. Other strategies should be considered to increase adherence to open science in the journal.