Suicide mortality in Brazil: temporal analysis (2010-2021) and comparison with the first two years of the COVID-19 pandemic

Abstract

Objective: To analyze suicide cases in Brazil from 2010 to 2021 and the sociodemographic characteristics of this phenomenon, including the first two years of the COVID-19 pandemic, to assess whether there was a relationship between the increase in suicide cases in Brazil and this illness. Methods: Ecological timeline study, with 140,339 cases analyzed from the Mortality Information System (SIM) databases. Rates and statistical regressions were performed using STATA® software. Results: Higher suicide rates in men, singles, and residents of the South and Midwest regions were observed. The age group of 10–19 years had an increase of 1.7 cases x 100 thousand inhabitants/year. Analysis by region revealed significant variations in rates, suggesting the influence of contextual factors. Although the pandemic affected mental health, it was not possible to establish a direct relationship between COVID-19 and increased suicide rates. Conclusion: These results reinforce the need for public policies and preventive interventions, especially for vulnerable groups such as young people. A multifactorial approach is suggested that considers socioeconomic factors, access to mental health services, and reduced stigma associated with mental illness. In short, this study contributes to understanding the temporal trends and demographic characteristics of suicides in Brazil, highlighting the importance of further longitudinal investigations to better understand this complex phenomenon. Hopefully, this evidence will strengthen mental health policies and promote more effective suicide prevention strategies.