SynthesisBMJ global health2026
The science of child and adolescent mental health in Brazil: a nationwide systematic review and compendium of evidence-based resources.
Synthesis in BMJ global health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
3 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Systematic Review and Meta-Analysis of the Prevalence of Substance Use Among Adolescents in South Africa.Drug and alcohol review · 2026Pooled it
- Early outdoor play predicts trajectories of child mental health in a population-based cohort.Journal of child psychology and psychiatry, and allied disciplines · 2026Article
- Mental disorders and self-harm among Brazilian children, adolescents, and young adults: prevalence, disability, and mortality estimates from the Global Burden of Disease Study.Lancet regional health. Americas · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
27 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundBrazil is home to 50 million children and adolescents, whose mental health needs require context-sensitive research. Although scientific output is growing in the country, publications remain scattered and often inaccessible.
methodsThis systematic review compiles prevalence estimates, assessment instruments and interventions for child and adolescent mental health-related outcomes in Brazil (PROSPERO: CRD42023491393). We searched international (PubMed, Web of Science, PsycINFO, Google Scholar) and regional (Scielo, Lilacs, Brazilian Digital Library of Theses and Dissertations) databases up to July 2024. We consulted reference lists and experts. Extraction followed Consensus-based Standards for the selection of health Measurement Instruments and Cochrane manuals.
resultsWe included 734 studies on 2576 prevalence estimates, 908 studies on 912 instruments and 192 studies on 173 intervention trials. The prevalence of any mental disorder ranged from 10.8% (12-year-olds; Pelotas, RS) to 19.9% (ages 7-14; Porto Alegre, RS and São Paulo, SP) although a nationally representative study is lacking. There is an alarming rise in self-harm notifications, reaching 133 in 2019 (per 100 000 aged 10-19). Indigenous youth face suicide rates of 11 (ages 10-14), far exceeding national numbers (0.652). Nationwide surveys reveal severe violence exposure (eg, 21% of adolescents suffer physical violence at home in the previous year), disproportionately impacting Black youth and increasing risk for mental disorders. There are reliable instruments for assessing psychopathology, yet most lack cross-cultural validation. Interventions remain underimplemented. The largest trials adapted substance-use prevention programmes from high-income countries, proving ineffective in Brazil. Public investment is the primary driver of research, which is centralised in wealthier states and misrepresents social minorities. DISCUSSION: This review provides timely access to appraised evidence-based resources, facilitating uptake into practice. Brazil's historical sociocultural challenges impact youth mental health, with public health priorities including systemic violence, racism and indigenous suicide.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.