Temporal trend of adolescent intentional self-harm notifications in the school environment, Brazil, 2011-2018

Aragão, Conceição de Maria Castro de; Mascarenhas, Márcio Dênis Medeiros

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Brasil

Epidemiologia e Serviços de Saúde

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Original Article • Epidemiol. Serv. Saúde 31 (1) • 2022 • https://doi.org/10.1590/S1679-49742022000100028 copy

Temporal trend of adolescent intentional self-harm notifications in the school environment, Brazil, 2011-2018

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Objective:

To analyze the trend of adolescent intentional self-harm notifications in the school environment, Brazil, 2011 to 2018.

Methods:

This was an ecological time series study, with data from the Notifiable Health Conditions Information System, using the Prais-Winsten linear regression model.

Results:

A total of 1,989 cases were notified. Notification rates ranged from 0.09 to 2.75/100,000 inhabitants, with an increasing trend, both in females (APC= 66.0%; 95%CI 39.0;98.3) and male (APC = 55.2%; 95%CI 29.9;85.4). The North region showed a stationary trend, while the Southeast and South regions showed an increasing trend, especially Rio de Janeiro (APC = 85.5%; 95%CI 58.0;117.8) and Paraná (APC = 73.6%; 95%CI 41.9;112.3). In the Midwest region, only the state of Mato Grosso do Sul showed a rising trend (APC = 54.5%; 95%CI 16.9;104.2).

Conclusion:

There was an increasing trend in adolescent intentional self-harm notifications in the school environment in Brazil, during the study period.

Keywords:
Suicide, Attempt; Violence; Adolescent; Time Series Studies; Health Information System

Characteristics	n (%)
Sex (n = 1,989)
Female	1,533 (77.1)
Male	456 (22.9)
Age group (in years) (n = 1,989)
10-14	1,140 (57.3)
15-19	849 (42.7)
Self-reported race/skin color (n = 1,830)^a
White	1,004 (54.9)
Black/brown	798 (43.6)
Asian/indigenous	28 (1.5)
Zone of residence (n = 1,941)^a
Urban	1,721 (88.7)
Peri-urban/rural	220 (11.3)

Characteristics	Notification rate		APC^a (%)	95%CI^b	p-value	Trend
Characteristics	2011	2018	APC^a (%)	95%CI^b	p-value	Trend
Sex
Female	0.12	4.50	66.0	39.0;98.3	0.001	Increasing
Male	0.06	1.07	55.2	29.9;85.4	0.001	Increasing
Age group (in years)
10-14	0.09	3.32	66.3	37.2;101.6	0.001	Increasing
15-19	0.09	2.21	58.6	34.6;86.8	0.001	Increasing

Region/FU^a	Notification rate		APC^a (%)	95%CI^b	p-value	Trend
Region/FU^a	2011	2018	APC^a (%)	95%CI^b	p-value	Trend
North	0.00	1.30	4.3	-51.7;125.2	0.897	Stable
Rondônia	0.00	3.47	18.0	-1.3;41.0	0.064	Stable
Acre	0.00	6.81	32.8	1.1;74.4	0.044	Increasing
Amazonas	0.00	0.48	-23.0	-31.8;-13.1	0.002	Decreasing
Roraima	0.00	2.71	15.0	-1.0;33.6	0.062	Stable
Pará	0.00	0.49	-10.6	-34.4;21.8	0.409	Stable
Amapá	0.00	0.00	4.5	0.3;9.0	0.039	Increasing
Tocantins	0.00	2.76	18.3	-22.1;79.6	0.363	Stable
Northeast	0.03	1.08	65.0	32.3;105.9	0.001	Increasing
Maranhão	0.00	0.36	-10.6	-33.6;20.5	0.394	Stable
Piauí	0.00	0.85	-0.3	-2.3;22.5	0.970	Stable
Ceará	0.06	1.40	29.5	-27.3;131.0	0.315	Stable
Rio Grande do Norte	0.17	2.19	5.0	-17.3;33.4	0.633	Stable
Paraíba	0.15	1.03	4.7	-18.9;35.1	0.678	Stable
Pernambuco	0.00	2.01	23.0	-11.7;71.3	0.177	Stable
Alagoas	0.00	1.56	-1.8	-21.3;22.5	0.846	Stable
Sergipe	0.00	0.48	-3.8	-8.6;1.1	0.107	Stable
Bahia	0.00	0.47	-15.5	-49.2;40.6	0.449	Stable
Southeast	0.14	3.17	57.3	32.2;87.2	0.001	Increasing
Minas Gerais	0.18	3.32	47.3	27.4;70.3	0.001	Increasing
Espírito Santo	0.00	12.05	55.1	5.0;129.2	0.033	Increasing
Rio de Janeiro	0.04	1.33	85.5	58.0;117.8	0.001	Increasing
São Paulo	0.18	2.92	60.9	32.8;94.9	0.001	Increasing
South	0.17	6.53	68.1	42.7;98.0	0.001	Increasing
Paraná	0.22	9.40	73.6	41.9;112.3	0.001	Increasing
Santa Catarina	0.00	3.42	43.9	11.0;86.6	0.014	Increasing
Rio Grande do Sul	0.23	5.43	55.9	28.1;89.9	0.001	Increasing
Midwest	0.04	2.92	62.6	34.7;96.3	0.001	Increasing
Mato Grosso do Sul	0.22	7.43	54.5	16.9;104.2	0.009	Increasing
Mato Grosso	0.00	1.07	-2.8	-26.5;19.8	0.546	Stable
Goiás	0.00	1.81	20.8	-15.9;73.4	0.249	Stable
Distrito Federal	0.00	3.50	29.4	-5.7;77.6	0.094	Stable
Brazil	0.09	2.75	62.7	36.1;94.6	0.001	Increasing

Secretaria de Vigilância em Saúde e Ambiente - Ministério da Saúde do Brasil SRTVN Quadra 701, Via W5 Norte, Lote D, Edifício P0700, CEP: 70719-040, +55 61 3315-3464, Fax: +55 61 3315-3464 - Brasília - DF - Brazil
E-mail: ress.svs@gmail.com

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[1] Correspondence
Conceição de Maria Castro de Aragão cmaragão1@hotmail.com