IntroductionThe notification of interpersonal and self-inflicted violence (ISV) is a component of the epidemiological surveillance of this public health issue. Brazil has a large network of Health Information Systems that allows to describe the epidemiological reality and to manage the health services, but it is fundamental that the information provided by these systems be reliable and real. Thus, completeness is one of the attributes used to evaluate the quality of the information in public health surveillance systems.ObjectiveEvaluate the data quality of the Interpersonal and Self-inflicted Violence Notification Information System (ISVNIS) in Brazil, from 2011 to 2014.Methodsa descriptive study of the ISVNIS data was carried out considering de percentage of incompleteness of essential e mandatory variables among all variables of ISV notification form. Percentages of incompleteness were calculated on the basis of the not filled fields (filled in with ignored or blank) for each variable by year of notification. The annual average of incompleteness was calculated and classified as follow: Excellent (incompleteness <5%), Good (5%–9.9%), Regular (10%–19.9%), Bad (20%–49.9%) and Too Bad (≥50%).Findings from 2011 to 2014, the number of ISV notifications increased 84.3%. In general, the average incompleteness of the variables analyzed was classified as Bad (22.4%), ranging from Regular for the individual notification (14.4%) and the victim identification (14.6%) variables, to Bad for closure of notification (30.8%) and case referral (32.9%) variables.Conclusion and policy implicationsThe ISV notification data presented bad completion quality, despite the increase in the number of notifications in the analyzed period. Data monitoring and training of professionals in the correct filling of ISV notifications is recommended.

Introduction In Brazil, suicide is an alarming and growing health problem among adolescents. The Sustainable Development Goals aims to promote mental health. Methods Descriptive epidemiological study regarding the proportion of deaths by suicide according to ICD-10 classification, gender, Brazilian region, place of occurrence, race and year in adolescents from 10 to 19 years old in the period of 2008 to 2017 in Brazil, through the national system of health data, DATASUS. Results From 2008 to 2017, there were 175,543 deaths in adolescents due to external causes in Brazil; voluntarily self-inflicted injuries were the second main cause with 8,028 (4.6%) deaths - Among them, 728 occurred in 2008, 672 in 2009, 706 in 2010, 733 in 2011, 792 in 2012, 786 in 2013, 814 in 2014, 854 in 2015, 897 in 2016, and 1047 in 2017. Cases of strangulation/hanging/suffocation were 5,429 (67.2%); self-poisoning by pesticides were 512 (6.5%); intentional self-harm caused by the firing of another firearm and an unspecified firearm were 456 (5.7%). The most affected gender was male, with 5,536 (69%) deaths; female was 2,492 (31%). Among regions, the Southeast Region had 2,238 (27.9%) death records, followed by the Northeast, with 2,128 (26.5%). The most reported place of occurrence was home, with 4,570 (56.9%) deaths, followed by hospital, with 1,627 (20.3%). Among races, brown people were 3,803 (47.4%) deaths, and whites were 3,023 (37.7%). Conclusions Suicide of adolescents is a growing tragedy, with an increase of 55% in the analyzed period. Expanding studies on the theme will favor better conduct and management by health professionals. The timely identification of adolescents with a suicidal tendency and its specialized follow-up may be tools to reduce this sad reality. Key messages The study of child and youth suicide is important to assess the aspects that promote it, propose effective interventions and evaluate, by monitoring, the problems caused at home. It elucidates a important topic to Brazilian public health: suicide among young people. Due to its prevalence, discussing it corroborates to develop new guidelines and conducts for managing patients.

Introduction One of the Sustainable Development Goals is to promote mental health. It is then mandatory to know the death profile of this population and to develop public policies to reduce it. Methods Epidemiological descriptive study regarding the proportion of indigenous deaths according to the variables: age group, year of occurrence, gender, region, municipality and ICD-10 category, in the period 2008 to 2017 in Brazil, using data from the national database DATASUS. Results From 2008 to 2017, there were 5,489 indigenous deaths due to external causes in Brazil, with 1,107 (20.1%) due to self-caused lesions. The annual average was 110.7 cases per year: 100 in 2008, 95 in 2009, 93 in 2010, 97 in 2011, 90 in 2012, 113 in 2013, 117 in 2014, 132 in 2015, 120 in 2016, and 150 in 2017. Regarding causes, strangling/hanging/suffocation were 979 (88.4%), self-intoxication was 31 (2.8%) with other chemicals and 21 (1.8%) with pesticides. Regarding age group, 365 (32.9%) were between 15 to 19 years old, 325 (29.3%) between 20 to 29, 150 (13.5%) between 30 to 39, 131 (11.8%) between 10 to 14, and 136 (12.2%) in other age groups. Regarding gender, 807 (72.9%) were male, 299 (27.0%) were female, and 1 (0.09%) was ignored. Regarding region, the Northern Region had 575 (51.9%) cases and the Central-Western Region had 403 (36.4%) cases. The municipality of São Gabriel da Cachoeira was the one with the highest amount of cases: 132 (12.7%). Conclusions The 50% increase in the amount of deaths by suicide among indigenous people in the analyzed period reveals the infficacy of established public policies in Brazil. The number of deaths among the youth reveals the community trauma of exploration, violence and dignity loss. The Nothern and Central-Western regions had conflicts due to land demarcation and prospecting, which explain the high rates. The reduction of such tragedy demands capacitation of all the public spheres. Key messages Evaluate the aspects that promote it and to propose effective interventions in environments of difficult access and in a historically vulnerable population. Discuss some relevant characteristics among natives who are vulnerable to practicing self-made injuries, in order to make it possible to create new ways to protect this population.