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Updated: Dec 9, 2025

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Published on: July 29, 2020
Suicide trend among Brazilian adolescents between 1997 and 2016
Fabiana Yanes Fernandes1, Bruna Hinnah Borges Martins de Freitas1, Samira Reschetti Marcon1
1Universidade Federal de Mato Grosso, Faculdade de Enfermagem, Cuiabá, MT, Brasil.
Objective:
To analyze the suicide mortality trend among Brazilian adolescents from 1997 to 2016.
Methods:
This is an ecological time series study; Prais-Winsten regression was used.
Results:
14,852 suicide deaths were recorded, with mortality rates per 100,000 inhabitants of 1.95 in 1997, 2.65 in 2016 and average of 2.14 for the period 1997-2016; deaths predominated in males (67.59%), as well as deaths due to intentional self-harm (84.19%) and suicides at home (52.69%); the Midwest region had the highest rate in the period (3.71/100,000 inhabitants), in particular the state of Mato Grosso do Sul (8.3/100,000 inhabitants); the suicide trend rose 1.35% per annum in the general adolescent population (95%CI 0.56;2.15), 1.63% in males (95%CI 0.56;2.29), 3.11% in the North (95%CI 2.25;3.98) and 4.19% in the Northeast (95%CI 2.58;5.84).
Conclusion:
Suicide mortality in Brazilian adolescents showed an upward trend in the period studied.
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