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INTRODUCTION: Peer violence is a serious type of school violence that is associated with emotional and behavioral problems. OBJECTIVE: To analyze violence between peers associated with students' social skills. METHODS: We used a cross sectional survey nested in a cluster randomized controlled trial to evaluate peer violence among elementary school students and its association with prosocial behaviors and mental problems. Teachers answered an adapted version of the Revised Olweus Bully/Victim Questionnaire and the Brazilian adaptation of the Teacher Observation of Classroom Adaptation-Checklist (TOCA-C) scale for each student. Children completed a sociodemographic questionnaire. The participants were 1,152 5-14-year-old children from Brazilian public schools; 79.70% reported being involved in violent situations. RESULTS: Children who had both committed and suffered violence were less likely to exhibit prosocial behaviors. Children who committed and suffered violence and those who only committed were more likely to experience concentration problems and disruptive behaviors. DISCUSSION: This study suggests that peer violence is associated with lower prosocial behaviors and more behavioral problems. Thus, more specialized mental health care is required for children involved in peer violence, in addition to the possibility of implementing and maintaining programs to prevent and reduce violence and to develop prosocial behaviors in schools.
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PURPOSE: The Brazilian version of the prevention program Unplugged, #Tamojunto, has had a positive effect on bullying prevention. However, the curriculum has recently been revised, owing to its negative effects on alcohol outcomes. This study evaluated the effect of the new version, #Tamojunto2.0, on bullying. For adolescents exposed to the school-based program #Tamojunto2.0, we investigated (1) whether the prevalence of bullying victimization and perpetration was reduced, (2) whether this reduction was moderated by gender, and (3) whether the program's effect on bullying was mediated by adolescents' alcohol use. METHODS: A cluster randomized controlled trial was conducted using 5,208 eighth-grade students from 73 Brazilian public schools. Baseline data were collected before program implementation, and follow-up data were collected nine months later. We used a multilevel mixed-effects model to examine the effect of #Tamojunto2.0 on bullying, and a moderation model to test the moderating effect of gender on program outcomes. A mediation analysis was performed to determine lifetime alcohol use as a mediator of the intervention effect on bullying. RESULTS: We found that the positive effect of #Tamojunto2.0 on bullying victimization (ß = -0.019, 95% confidence interval = -0.035; -0.002) and perpetration (ß = -0.027, 95% confidence interval = -0.051; -0.004) was mediated by a decrease in alcohol use, but not moderated by gender. DISCUSSION: #Tamojunto2.0 program can be indirectly effective in the prevention of bullying by decreasing adolescents' alcohol use. Moreover, alcohol and drug use prevention programs might also affect bullying outcomes through mediation, and we suggest that future studies consider this.
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Acoso Escolar , Víctimas de Crimen , Trastornos Relacionados con Sustancias , Adolescente , Humanos , Trastornos Relacionados con Sustancias/epidemiología , Instituciones Académicas , Cognición , Acoso Escolar/prevención & controlRESUMEN
This study aimed to examine whether being a victim of bullying predicted body dissatisfaction and eating disorder behavior (EDB). In this study, we performed secondary analysis from a cluster randomized controlled trial among 5208 eight grade students from 73 public schools in three Brazilian cities. Data were collected in 2019 through an anonymous self-report questionnaire on bullying, body dissatisfaction, and EDB. We used factor analysis, multivariate linear regression, and multinomial logistic regression to verify whether being a victim of bullying during the baseline results in body dissatisfaction and EDB at the nine months follow-up for the control and intervention groups. Our results showed that being female (OR 1.41, 95% CI 1.22-1.63) is a risk factor for dissatisfaction by overweight. Bullying was not a predictor of body dissatisfaction; however, being a victim of bullying (ß 0.40, 95% CI 0.35-0.46) is a predictor of having more EDB, independent of the exposure to the program. Therefore, bullying deserves attention in the school environment.
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Acoso Escolar , Víctimas de Crimen , Trastornos de Alimentación y de la Ingestión de Alimentos , Humanos , Femenino , Masculino , Emociones , Instituciones Académicas , Estudiantes , Factores de RiesgoRESUMEN
In this study, we aimed to describe the patterns of alcohol consumption in Brazilian adults by sociodemographic characteristics and states according to sex. Cross-sectional study including 87,555 adults from the 2019 Brazilian National Health Survey who responded to a questionnaire on alcohol consumption and were classified as non-drinkers (0 g/day), light (1-12.5 g/day), moderate (12.6-49.9 g/day), and heavy drinkers (≥ 50 g/day). Of the Brazilian adults, 73.5% were non-drinkers. Among the drinkers, 14.8% were light drinkers. 82.6% of heavy drinkers were men. White participants drank more than non-white participants, except black women who were 38% more likely to be moderate drinkers than white women (ROR 1.38, 95% CI 1.09 to 1.76). Unmarried were more likely to be drinkers. Women over 55 and men over 65 years old were less likely to be drinkers. Compared to participants with none or incomplete primary education, both men and women with higher educational attainment were more likely to be light and moderate drinkers. The largest consumption of alcohol was found in Sergipe and Mato Grosso for men, and Mato Grosso do Sul and Bahia for women. Our findings may be useful to inform policies for reducing alcohol consumption in Brazil.
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Consumo de Bebidas Alcohólicas , Intoxicación Alcohólica , Adulto , Anciano , Consumo de Bebidas Alcohólicas/epidemiología , Brasil/epidemiología , Estudios Transversales , Etanol , Femenino , Humanos , MasculinoRESUMEN
OBJECTIVE: São Paulo's Crackland is the biggest and oldest open drug use scene in Brazil, yet little is known about the profile of crack cocaine treatment-seeking individuals living in this region. The aim of this crossectional study was to describe the demographics and clinical characteristics of treatment-seeking crack users living in the Crackland region. METHODS: A sample of nighty eight individuals were screened for DSM-V substance use disorders, including substance use, impulsiveness, and psychiatric symptoms. Recent crack cocaine use was also tested using biologic specimens. RESULTS: Results indicated severe social vulnerability, as participants experienced high rates of homelessness (46.9%), unstable housing (50%), unemployment (60.4%) and early school drop-out (27.5%). The average age of crack use onset was 20 years (SD = 6.9) and the mean duration of continuous crack use was 15 years (SD = 9.7). Most participants presented with concomitant mental health disorders, particularly alcohol use disorder (87.8%), as well high rates of psychiatric symptomatology and impulsiveness. More than half of the sample reported at least one previous inpatient (73.5%) and outpatient (65.3%) addiction treatment attempt. CONCLUSION: This population profile should inform mental healthcare services, promoting the provision of tailored assistance by targeting specific demands at all levels of treatment.
OBJETIVO: Localizada em São Paulo, a Cracolândia é o maior e mais antigo cenário aberto de uso de drogas do Brasil. Ainda assim, pouco se sabe sobre o perfil dos indivíduos que vivem nessa região e buscam tratamento para crack. O objetivo deste estudo transversal foi descrever características demográficas e clínicas de usuários de crack vivendo na região da Cracolândia que estão em busca de tratamento. MÉTODOS: Noventa e oito indivíduos foram avaliados para transtornos por uso de substâncias do DSM-V, padrão de uso de substâncias, impulsividade e sintomatologia psiquiátrica. O uso recente de crack também foi determinado por meio de coleta de amostras toxicológicas. RESULTADOS: Os resultados indicaram grave vulnerabilidade social, com significativas prevalências de falta de moradia (46,9%), moradia instável (50%), desemprego (60,4%) e abandono escolar precoce (27,5%). A idade média de início do uso de crack foi de 20 anos (DP = 6,9) e a duração média do uso contínuo do crack foi de 15 anos (DP = 9,7). A maioria dos participantes apresentou alguma comorbidade psiquiátrica, particularmente transtorno por uso de álcool (87,8%), bem como altas taxas de sintomatologia psiquiátrica e impulsividade. Mais da metade da amostra relatou pelo menos uma tentativa anterior de tratamento por internação (73,5%) e ambulatorial (65,3%). CONCLUSÃO: Os achados desse estudo permitem um maior entendimento do perfil e das necessidades de usuários de crack vivendo na região da Cracolândia e podem ajudar serviços de saúde especializados em dependência química a promoverem uma assistência mais direcionada às demandas específicas dessa população.
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Humanos , Masculino , Adulto , Aceptación de la Atención de Salud/psicología , Cocaína Crack/efectos adversos , Trastornos Relacionados con Sustancias/diagnóstico , Trastornos Relacionados con Cocaína/terapia , Trastornos Relacionados con Cocaína/epidemiología , Consumidores de Drogas/psicología , Factores Socioeconómicos , Brasil , Personas con Mala Vivienda/estadística & datos numéricos , Prevalencia , Estudios TransversalesRESUMEN
BACKGROUND: Smoked cocaine (i.e., crack use) is a severe health problem in Brazil, with the country being reported as having the largest crack market in the world. The objective of this study was to evaluate the effectiveness of incorporating Contingency Management targeting cocaine abstinence into a public treatment program in Brazil. METHODS: Single-blind randomized controlled trial conducted at Unidade Recomeço Helvétia (URH), a public ambulatory treatment program for persons who use crack and live in the "Crackland" region in downtown São Paulo, Brazil. In total, 98 treatment-seeking individuals who use crack were randomized to one of two treatment conditions. Participants allocated to the control condition (n = 48) received 12 weeks of the standard treatment provided at URH. Participants allocated to the experimental condition (n = 50) received the same treatment in combination with Contingency Management (URH+CM). In URH+CM, participants were provided with vouchers with monetary value for submission of negative cocaine urinalysis twice weekly. RESULTS: Compared to the URH group, the URH+CM group was significantly more likely to submit a negative cocaine urinalysis during treatment, with odds ratios ranging from 4.17 to 6.78, depending on how missing data was accounted for (p<0.01). Participants receiving Contingency Management also had higher odds of achieving three or more weeks of continuous abstinence (OR= 8.07; 95% CI [2.48, 26.24]), achieved longer durations of abstinence (B = 2.14; 95% CI [0.67, 3.61]), submitted a higher percentage of negative urinalysis (B = 19.85; 95% CI [6.89, 32.82]), and were retained in treatment for a longer period (B = 3.00; 95% CI [1.04, 4.97]), compared to those receiving URH alone (p<0.01 for all). CONCLUSIONS: The incorporation of Contingency Management was effective in promoting cocaine abstinence and treatment retention. The large-scale dissemination of Contingency Management may be an effective strategy to treat Brazilians with cocaine use disorders.
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Trastornos Relacionados con Cocaína , Cocaína Crack , Terapia Conductista , Brasil , Trastornos Relacionados con Cocaína/terapia , Humanos , Método Simple Ciego , Resultado del TratamientoRESUMEN
INTRODUCTION: Exposure to peer aggression (PA) and bullying victimization (BV) are both expressions of peer victimization. OBJECTIVES: In four age-sex groups, (1) Can exposure to PA and BV be considered distinct experiences? (2) To what extent do adolescents exposed to PA consider themselves bullying victims? and (3) What is the effect on BV of the number of PA events experienced? METHODS: This cross-sectional study evaluated a probabilistic community-based sample of 669 adolescents (11-15 years, 51.7% girls). A three-stage probabilistic sampling plan involved random selection of census units, eligible households, and one target child per household selected. A 15-item scale investigated exposure to PA events (physical aggression, verbal harassment, social manipulation) occurring more than once in the past six months. BV occurring more than once a week or most days in the past six months was investigated after presenting respondents with a BV definition that required them to feel harmed by their victimization experiences. RESULTS: Adolescents exposed to PA and/or BV reported PA only (76.2%), BV only (4.7%), and both (19.1%). Rates of BV among those exposed to PA were as follows: 11-to-12-year-old boys (22.7%), 13-to-15-year-old boys (9.7%), 11-to-12-year-old girls (46.5%), and 13-to-15-year-old girls (13.2%). Multiple logistic regression analysis (outcome = BV) found a significant interaction between PA, age, and sex. PA events had a significant effect on BV for all except older girls. CONCLUSION: Exposure to PA and BV are different constructs; few older boys exposed to PA consider themselves bullying victims; and older girls are less affected by PA when it comes to BV.
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Acoso Escolar , Víctimas de Crimen , Adolescente , Agresión , Niño , Estudios Transversales , Femenino , Humanos , Masculino , Grupo Paritario , Instituciones AcadémicasRESUMEN
Homeless substance users are particularly hard to treat. In this pilot study, we evaluated the acceptability and feasibility of incorporating Contingency Management (CM) into a public Abstinent-Contingent Housing (ACH) treatment program developed to treat currently homeless crack cocaine users. A total of 21 homeless crack cocaine users were randomized to receive 12 weeks of ACH alone (n = 9) or ACH plus CM (ACH + CM) (n = 12). Twelve treatment providers in the ACH treatment program were trained to deliver the CM intervention. CM was rated as relatively (41.7%) or very (58.3%) easy to understand and relatively (50%) or very (50%) easy to conduct by the ACH treatment providers. On a 10-point Likert scale, providers rated the importance of incorporating CM into public treatment programs for crack cocaine at M = 8.3 (SD = 2). Participants exposed to CM rated as relatively (33.3%) or very (66.7%) easy to understand. One hundred percent liked receiving the intervention "a lot," and 78.9% believed it helped them achieve and maintain crack cocaine abstinence. Finally, compared to the ACH condition, the ACH + CM condition was consistently associated with better treatment retention and cocaine use outcome measures, yelling small to large effect sizes. However, possibly due to the small sample size, most of these differences did not achieve statistical significance. CM was well integrated into the ACH treatment program and was well accepted by both the providers and participants, suggesting the feasibility of incorporating CM into a public treatment program for homeless crack cocaine users from low- and middle-income countries. (PsycInfo Database Record (c) 2022 APA, all rights reserved).
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Trastornos Relacionados con Cocaína , Cocaína Crack , Personas con Mala Vivienda , Brasil , Trastornos Relacionados con Cocaína/terapia , Estudios de Factibilidad , Humanos , Proyectos PilotoRESUMEN
Abstract Introduction Exposure to peer aggression (PA) and bullying victimization (BV) are both expressions of peer victimization. Objectives In four age-sex groups, (1) Can exposure to PA and BV be considered distinct experiences? (2) To what extent do adolescents exposed to PA consider themselves bullying victims? and (3) What is the effect on BV of the number of PA events experienced? Methods This cross-sectional study evaluated a probabilistic community-based sample of 669 adolescents (11-15 years, 51.7% girls). A three-stage probabilistic sampling plan involved random selection of census units, eligible households, and one target child per household selected. A 15-item scale investigated exposure to PA events (physical aggression, verbal harassment, social manipulation) occurring more than once in the past six months. BV occurring more than once a week or most days in the past six months was investigated after presenting respondents with a BV definition that required them to feel harmed by their victimization experiences. Results Adolescents exposed to PA and/or BV reported PA only (76.2%), BV only (4.7%), and both (19.1%). Rates of BV among those exposed to PA were as follows: 11-to-12-year-old boys (22.7%), 13-to-15-year-old boys (9.7%), 11-to-12-year-old girls (46.5%), and 13-to-15-year-old girls (13.2%). Multiple logistic regression analysis (outcome = BV) found a significant interaction between PA, age, and sex. PA events had a significant effect on BV for all except older girls. Conclusion Exposure to PA and BV are different constructs; few older boys exposed to PA consider themselves bullying victims; and older girls are less affected by PA when it comes to BV.
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INTRODUCTION: Most children/adolescents with disability live in low and middle-income countries and, worldwide, they are more likely to have mental health problems and achieve worse academic performance compared to those with typical development. OBJECTIVE: To assess whether Brazilian children/adolescents with four types of disabilities are more likely to have psychiatric disorders and educational deficits than children/adolescents with typical development. METHOD: A multicenter cross-sectional study involving a school-based probabilistic sample of second to sixth graders (N = 1,674) from public schools in four Brazilian regions. The four types of disabilities (intellectual, visual, hearing, and motor) were assessed using the Ten Questions Questionnaire. Psychiatric disorders were measured with the Schedule for Affective Disorders/Schizophrenia for School-Age Children (K-SADS-PL), and academic performance was evaluated using the Teste de Desempenho Acadêmico - TDE (the academic performance test). RESULTS: A logistic regression model with cluster-robust errors identified the following statistically significant associations with three of the four types of disability (the exception was hearing). Intellectual disability was associated with anxiety (p < 0.01), depression (p < 0.01), attention deficit hyperactivity disorder (ADHD) (p < 0.001), school failure (p < 0.01), and poor academic performance (p < 0.01). Visual disability was associated with depression (p < 0.01). Motor disability was marginally associated with ADHD (p = 0.08). CONCLUSIONS: Presence of disabilities (intellectual, visual, and motor) in children/adolescents was associated with psychiatric disorders, school failure, and academic performance. It is therefore important to identify presence of disabilities and plan and deliver specific interventions and specialized educational care for the needs presented by these children/adolescents. This is particularly important in low and middle-income countries, where these disabilities are frequent among children/adolescents.
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Trastorno por Déficit de Atención con Hiperactividad , Personas con Discapacidad , Trastornos Motores , Adolescente , Trastorno por Déficit de Atención con Hiperactividad/epidemiología , Niño , Estudios Transversales , Escolaridad , HumanosRESUMEN
Abstract Introduction Most children/adolescents with disability live in low and middle-income countries and, worldwide, they are more likely to have mental health problems and achieve worse academic performance compared to those with typical development. Objective To assess whether Brazilian children/adolescents with four types of disabilities are more likely to have psychiatric disorders and educational deficits than children/adolescents with typical development. Method A multicenter cross-sectional study involving a school-based probabilistic sample of second to sixth graders (N = 1,674) from public schools in four Brazilian regions. The four types of disabilities (intellectual, visual, hearing, and motor) were assessed using the Ten Questions Questionnaire. Psychiatric disorders were measured with the Schedule for Affective Disorders/Schizophrenia for School-Age Children (K-SADS-PL), and academic performance was evaluated using the Teste de Desempenho Acadêmico - TDE (the academic performance test). Results A logistic regression model with cluster-robust errors identified the following statistically significant associations with three of the four types of disability (the exception was hearing). Intellectual disability was associated with anxiety (p < 0.01), depression (p < 0.01), attention deficit hyperactivity disorder (ADHD) (p < 0.001), school failure (p < 0.01), and poor academic performance (p < 0.01). Visual disability was associated with depression (p < 0.01). Motor disability was marginally associated with ADHD (p = 0.08). Conclusions Presence of disabilities (intellectual, visual, and motor) in children/adolescents was associated with psychiatric disorders, school failure, and academic performance. It is therefore important to identify presence of disabilities and plan and deliver specific interventions and specialized educational care for the needs presented by these children/adolescents. This is particularly important in low and middle-income countries, where these disabilities are frequent among children/adolescents.
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Background: School-based prevention programs have been implemented worldwide with the intention of reducing or delaying the onset of alcohol and drug use among adolescents. However, their effects need to be evaluated, being essential to use validated and reliable questionnaires for this purpose. This study aimed to verify the semantic validity and reliability of an instrument developed to evaluate the results of a government drug prevention program for schoolchildren called #Tamojunto2.0. Methods: This is a mixed methods study with quantitative (test-retest, confirmatory factor analysis and non-response evaluation) and qualitative analyses (focus group and field cards). The self-administered questionnaires were used for a sample of 262 eighth-grade students (elementary school II) in 11 classes of four public schools in the city of São Paulo. Results: The level of agreement was substantial (Kappa 0.60-0.79) or almost perfect (Kappa > 0.8) for almost all questions about the use of marijuana, alcohol, cigarettes, cocaine, crack, and binge drinking. The model fit indices, for almost all secondary outcomes, indicated that the modls underlying each scale, constituted by observed and latent variables, had a good fit adjustument. The focus groups and field cards provided high-quality information that helped the researchers identify the main difficulties in applying and understanding the questions. Conclusion: The questionnaire showed high factorial validity, reliability and understanding by adolescents. After the necessary changes, identified in this study, the questionnaire will be suitable to evaluate the results of the #Tamojunto2.0 program in a randomized controlled trial.
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BACKGROUND: Early interventions benefit the mental health, academic performance and productivity of children and adolescents throughout their life. The present study protocol will evaluate the effectiveness of the Elos 2.0 Programme, which is a version adapted for Brazil by the Ministry of Health, in reducing problem behaviours (e.g., disruptiveness, aggressivity and shyness) and promoting social skills in the school context in children 6 to 10 years of age. The Elos Programme is based on the Good Behaviour Game, which is widely used and prevents and/or reduces students' disruptive behaviours by establishing cooperation contingencies. METHOD: A cluster-randomized controlled trial will be performed in 30 schools in three cities (15 controls and 15 in the experimental group), with a total of 3800 children participating in the test (1900 in the control group and 1900 in the intervention group). Data will be collected by having teachers in the control and experimental classes complete the Teacher Observation of Classroom Adaptation (TOCA) questionnaire, which is an instrument used to observe children's behaviour in the classroom. We will collect data before and after the intervention period in the same year. Due to the hierarchical structure of the data, multilevel analysis will be performed to detect simultaneous differences in prevalence over time and across groups to control for sociodemographic variables. DISCUSSION: The current study will examine the effectiveness of the Elos 2.0 Programme in reducing problem behaviours (e.g., disruptiveness, aggressivity and shyness) and promoting social skills in the school context. The findings of this school-based prevention programme for children will influence the development and implementation of similar programmes for schools and educational policymakers by identifying mechanisms that are central to achieving positive outcomes for participants. TRIAL REGISTRATION: Registry of Clinical Trials of the Ministry of Health RBR-86c6jp . Registered February 2, 2019.
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Problema de Conducta , Adolescente , Brasil , Niño , Promoción de la Salud , Humanos , Evaluación de Programas y Proyectos de Salud , Ensayos Clínicos Controlados Aleatorios como Asunto , Servicios de Salud Escolar , Instituciones Académicas , Habilidades SocialesRESUMEN
Several stressors associated with the coronavirus disease 2019 (COVID-19) are expected to affect the mental health of global populations: the effects of physical distancing, quarantine, and social isolation; the emotional suffering of health and other frontline workers; neuropsychiatric sequelae in those affected by the virus; the impact to families of lives lost to the disease; differential effects for those with severe mental disorders; and the consequences of social and economic deterioration. In this context, we sought: to form a panel of Brazilian experts on child and adolescent health, neurodevelopment, health services, and adult and elderly mental health; and to compile evidence-based interventions to support suggested policy changes in Brazil to mitigate the expected increase in mental health disorders during the pandemic and its mental health consequences. The following actions are recommended: 1) invest in prevention programs for the safe return of students to schools; 2) adopt evidence-based psychosocial interventions to maintain an adequate environment for child and adolescent development; 3) target socially vulnerable populations and those experiencing discrimination; 4) train primary care teams to solve common mental health problems, provide needs-based assessments, and manage long-term, at-home care for older patients; 5) invest in technological advancements (e.g., telemedicine, e-Health, and web-based algorithms) to promote coordinated care; 6) increase access to and literacy in the use of computers and mobile phones, especially among older adults; 7) expand protocols for remote, brief psychotherapy interventions and psychoeducation to manage common mental health problems.
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COVID-19 , Adolescente , Anciano , Niño , Humanos , Salud Mental , Pandemias/prevención & control , Políticas , SARS-CoV-2RESUMEN
AIMS: The study aimed to evaluate the effectiveness of the government school-based program #Tamojunto2.0, the third Brazilian version of the European drug prevention program, Unplugged, in preventing the use of alcohol and other drugs. DESIGN: A parallel, two-arm cluster randomized controlled trial was conducted in 205 classes in 73 public schools (37 intervention and 36 control) with a baseline assessment and follow-up after 9 months. SETTING: Schools in the cities of São Paulo, Fortaleza and Eusebio in Brazil. PARTICIPANTS: A total of 5208 students in the 8th grade with a mean age of 13.2 years (standard deviation = 0.8 years) and an equal gender ratio. INTERVENTION: In 2019, the intervention group attended 12 classes of the program #Tamojunto2.0, under the supervision of a team from the Ministry of Health. The control group did not receive any intervention to prevent alcohol and drug use. MEASUREMENTS: The primary outcome measured was prevalence of binge drinking (five or more doses of alcohol in an occasion) within the past month. Secondary outcomes were prevalence of initiation and use of alcohol, tobacco, inhalants, marijuana and cocaine within the past month. FINDINGS: A statistically significant difference was not found in the prevalence of binge drinking within the past month between intervention and control groups [odds ratio (OR) = 0.934; 95% confidence interval (CI) = 0.761-1.146]. However, students who were exposed to the program were less likely to initiate alcohol use than those in the control group (OR = 0.782; 95% CI = 0.636-0.961). The Bayes factor for reduction in binge drinking was 0.01, providing evidence in favor of the null hypothesis for this variable. CONCLUSIONS: The drug prevention program #Tamojunto 2.0 reduced alcohol initiation, but appeared not to reduce past-month binge drinking among 8th grade students in Brazil.
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Servicios de Salud Escolar , Trastornos Relacionados con Sustancias , Adolescente , Consumo de Bebidas Alcohólicas , Teorema de Bayes , Humanos , Evaluación de Programas y Proyectos de Salud , Instituciones Académicas , Estudiantes , Trastornos Relacionados con Sustancias/prevención & controlRESUMEN
Nuclear distribution element-like 1 (NDEL1) enzyme activity is important for neuritogenesis, neuronal migration, and neurodevelopment. We reported previously lower NDEL1 enzyme activity in blood of treated first episode psychosis and chronic schizophrenia (SCZ) compared to healthy control subjects, with even lower activity in treatment resistant chronic SCZ patients, implicating NDEL1 activity in SCZ. Herein, higher NDEL1 activity was observed in the blood and several brain regions of a validated animal model for SCZ at baseline. In addition, long-term treatment with typical or atypical antipsychotics, under conditions in which SCZ-like phenotypes were reported to be reversed in this animal model for SCZ, showed a significant NDEL1 activity reduction in blood and brain regions which is in line with clinical data. Importantly, these results support measuring NDEL1 enzyme activity in the peripheral blood to predict changes in NDEL1 activity in the CNS. Also, acute administration of psychostimulants, at levels reported to induce SCZ-like phenotype in normal rat strains, increased NDEL1 enzyme activity in blood. Therefore, alterations in NDEL1 activity after treatment with antipsychotics or psychostimulants may suggest a possible modulation of NDEL1 activity secondary to neurotransmission homeostasis and provide new insights into the role of NDEL1 in SCZ pathophysiology.
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Cisteína Endopeptidasas/metabolismo , Cisteína Endopeptidasas/fisiología , Esquizofrenia/metabolismo , Animales , Antipsicóticos/farmacología , Encéfalo/metabolismo , Estimulantes del Sistema Nervioso Central/uso terapéutico , Clozapina/farmacología , Cisteína Endopeptidasas/sangre , Haloperidol/farmacología , Hipocampo/metabolismo , Masculino , Núcleo Accumbens/metabolismo , Corteza Prefrontal/metabolismo , Trastornos Psicóticos/tratamiento farmacológico , Ratas , Ratas Endogámicas SHR , Ratas Wistar , Esquizofrenia/fisiopatologíaRESUMEN
Suicide among adolescents has become a major public health problem worldwide. Our study sought to describe the most commonly used methods of suicide among adolescents aged 10 to 19 years in Brazil between 2006 and 2015. Complete data were obtained from the Brazilian Health Informatics Department (DATASUS) and coded into seven categories of suicide methods. The following statistical analyzes were performed: chi-square (χ2) tests to examine the association between the frequency of each suicide method and the year; odds ratios (OR) and 95% confidence intervals (95%CI) compared the relative chances of each suicide method occurring between boys and girls. In total, 8,026 suicides among Brazilian adolescents were registered over the analyzed period. The most commonly used method of suicide by both sexes was hanging (2015 = 70.3%), and the most significant increase was observed in girls (2015 = 65.82%). The proportional use of arms (2006 = 14.2%; 2015 = 9.1%) and poisoning (2006 = 13.3%; 2015 = 9.2%) decreased over the period. The increase in hanging is worrisome, mostly due to difficulties to impose access barriers and to its high lethality. In such context, a comprehensive understanding of suicide behaviors among adolescents in Brazil should be drawn to inform general prevention measures and, more specifically, the reasons for the increase in hanging need to be further investigated.
O suicídio entre adolescentes é um importante problema de saúde pública em nível global. O estudo teve como principal objetivo descrever os métodos de suicídio mais usados por adolescentes brasileiros entre 10 e 19 anos de idade, de 2006 a 2015. Foram obtidos dados completos do Departamento de Informática do SUS (DATASUS), codificados em sete categorias de métodos de suicídio. As seguintes análises estatísticas foram realizadas: testes de qui-quadrado (χ2) para examinar a associação entre a frequência de cada método de suicídio e o ano do óbito. As razões de chances (OR) e intervalos de 95% de confiança (IC95%) compararam as chances relativas entre homens e mulheres para cada método de suicídio. Durante o período analisado, houve 8.026 suicídios entre adolescentes. O enforcamento foi o método de suicídio mais usado em ambos os sexos eram (2015 = 70,3%), com um aumento mais agudo em mulheres (2015 = 65,82%). O uso proporcional de armas (2006 = 14,2%; 2015 = 9,1%) e envenenamento (2006 = 13,3%; 2015 = 9,2%) diminuiu ao longo do período. O aumento dos enforcamentos é preocupante, suscitando questões com dificuldades na imposição de barreiras de acesso e a alta letalidade desse método. Nesse contexto, precisa haver uma compreensão mais abrangente dos comportamentos suicidas entre os adolescentes brasileiros para informar as medidas preventivas em geral e, mais especificamente, para elucidar os motivos para o aumento dos suicídios por enforcamento.
El suicidio entre adolescentes se ha convertido en un importante problema de salud pública en todo el mundo. El objetivo de este estudio fue describir los métodos de suicido usados más comúnmente entre adolescentes, con edades comprendidas entre los 10 y 19 años, en Brasil desde 2006 hasta 2015. Los datos completos se obtuvieron del Departamento de Informática del Sistema Único de Salud (DATASUS) y se codificaron en siete categorías de métodos de suicidio. Se realizaron análisis estadísticos: tests chi-cuadrado (χ2) para examinar la asociación entre la frecuencia de cada método de suicidio y año. Odds ratios (OR) y los intervalos del 95% de confianza (IC95%) compararon las oportunidades relativas de cada método suicidio que se produce entre hombres y mujeres. Se registraron 8.026 suicidios entre adolescentes brasileños durante el período analizado. El método de suicidio más comúnmente usado por ambos sexos fue ahorcamiento (2015 = 70,3%), se observó un aumento más pronunciado en mujeres (2015 = 65,82%). El uso proporcional de armas (2006 = 14,2%; 2015 = 9,1%) y envenenamiento (2006 = 13,3%; 2015 = 9,2%) descendió durante este período. El incremento por ahorcamiento es preocupante, principalmente, en lo que se refiere a las dificultades para imponer barreras de acceso, así como por su alta letalidad. En este contexto, se deberían describir más los comportamientos suicidas entre adolescentes en Brasil para comprenderlos mejor, con el fin de que se tomen medidas de prevención general y, más específicamente, se profundice en las razones del incremento de ahorcamientos.
Asunto(s)
Suicidio , Adolescente , Adulto , Brasil/epidemiología , Niño , Femenino , Humanos , Masculino , Oportunidad Relativa , Proyectos de Investigación , Ideación Suicida , Adulto JovenRESUMEN
OBJECTIVE: Mental illness is an important public health concern, often starting early in life and particularly impacting children from low-and middle-income countries. Our aims were to 1) determine, in a representative sample of public preschool 4- to 5-year old children in Brazil, the prevalence of internalizing and externalizing disorders and socioemotional development delays; and 2) to identify modifiable risk factors associated with mental, behavioral, or developmental disorders (MBDD), such as microsystem (i.e., parent-child relationship), mesosystem (social support), and macrosystem contextual factors (neighborhood disadvantage). METHODS: A random sample of public preschool children was recruited in the city of Embu das Artes (São Paulo metropolitan area) (n=1,292 from 30 public preschools). Six-month prevalence of MBDD was measured using the Child Behavior Checklist (CBCL) and the Ages and Stages Questionnaires: Social-Emotional (ASQ:SE). RESULTS: Six-month prevalence estimates were 25.4% for internalizing disorders, 12.1% for externalizing disorders, and 30.3% for socioemotional development delays. MBDD prevalence estimates were higher in families with stressful relationships and parental depression or anxiety, and in families with lower social capital. CONCLUSION: At least 25% of preschool children living in an urban area in Brazil presented a mental health disorder. These mental disorder were associated with modifiable factors such as stressful family relationships and lower social capital. Prevention and intervention measures such as family therapy are needed to decrease such high prevalence.
Asunto(s)
Trastornos de la Conducta Infantil , Trastornos Mentales , Ansiedad , Brasil/epidemiología , Niño , Desarrollo Infantil , Preescolar , Humanos , Prevalencia , Factores de RiesgoRESUMEN
BACKGROUND: Our previous studies showed increased angiotensin I-converting enzyme (ACE) activity in chronic schizophrenia (SCZ) patients compared to healthy control (HC) volunteers, and the relevance of combining ACE genotype and activity for predicting SCZ was suggested. METHODS: ACE activity was measured in plasma of ACE insertion/deletion (I/D) genotyped HC volunteers (N = 53) and antipsychotic-naïve first-episode psychosis (FEP) patients (N = 45), assessed at baseline (FEB-B) and also after 2-months (FEP-2M) of treatment with the atypical antipsychotic risperidone. RESULTS: ACE activity measurements showed significant differences among HC, FEP-B and FEP-2M groups (F = 5.356, df = 2, p = 0.005), as well as between HC and FEP-2M (post-hoc Tukey's multiple comparisons test, p = 0.004). No correlation was observed for ACE activity increases and symptom severity reductions in FEP as assessed by total PANSS (r = -0.131, p = 0.434). FEP subgrouped by ACE I/D genotype showed significant ACE activity increases, mainly in the DD genotype subgroup. No correlation between ACE activity and age was observed in FEP or HC groups separately (r = 0.210, p = 0.392), but ACE activity levels differences observed between these groups were influenced by age. CONCLUSIONS: The importance of measuring the ACE activity in blood plasma, associated to ACE I/D genotyping to support the follow-up of FEP patients did not show correlation with general symptoms amelioration in the present study. However, new insights into the influence of age and I/D genotype for ACE activity changes in FEP individuals upon treatment was demonstrated.
RESUMEN
The multi-faceted phenomenon known as globalization has a particular impact on the conceptual and practical development of mental health disciplines in general, and psychiatry in particular, across different world regions. To be theoretically and functionally effective, global psychiatry requires an integration of its different components. To such objective, and after a brief review of continental European and Anglo-Saxon contributions, this article examines the history, characteristics, and contributions of Latin/Iberian American and Spanish-speaking psychiatry, in order to substantiate its role in world psychiatry. The Latin American proper (including Portuguese-speaking Brazil), Spain, and U.S.-based Hispanic components are described, revealing an identity that is based on a humanistic tradition, a value-based, culturally-determined clinical approach to patient care, and a pragmatic adaptation of different treatment resources and techniques. These may constitute supportive elements of an instrumental inter-regional bond in the present and future of our discipline.