Evidence map›Paper›PMID 27343886›Full record

ArticleJournal of the American Academy of Child and Adolescent Psychiatry2016

Environmental Determinants of Aggression in Adolescents: Role of Urban Neighborhood Greenspace.

Diana Younan, Catherine Tuvblad, Lianfa Li, Jun Wu, Fred Lurmann, Meredith Franklin, Kiros Berhane, Rob McConnell, Anna H Wu, Laura A Baker and 1 more

Open access · greenAbstract read
In one paragraph

Article in Journal of the American Academy of Child and Adolescent Psychiatry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 5 pooled it
8.4field-weighted citation impact, top 2% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

46 citing papers in PubMed, 5 syntheses or guidelines pooled it, 133 citations in OpenAlex.

  1. Socioeconomic inequalities in exposure to neighbourhood environments for physical activity: a systematic review.The international journal of behavioral nutrition and physical activity · 2026
    Pooled it
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  3. Life Course Nature Exposure and Mental Health Outcomes: A Systematic Review and Future Directions.International journal of environmental research and public health · 2021
    Pooled it
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  5. Impact of Green Space Exposure on Children's and Adolescents' Mental Health: A Systematic Review.International journal of environmental research and public health · 2018
    Pooled it
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  7. Community Safety Needs and Resources and Their Alignment: A Case Study.Journal of urban health : bulletin of the New York Academy of Medicine · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 2 countries.

Diana YounanKeck School of Medicine of the University of Southern California, Los Angeles. Electronic address: dyounan@usc.edu.
Catherine TuvbladUniversity of Southern California Dornsife College of Letters, Arts, and Sciences, Los Angeles; School of Law, Psychology and Social Work, Örebro University, Örebro, Sweden.
Lianfa LiKeck School of Medicine of the University of Southern California, Los Angeles.
Jun WuProgram in Public Health, University of California, Irvine College of Health Sciences, Irvine.
Fred LurmannSonoma Technology, Inc., Petaluma, CA.
Meredith FranklinKeck School of Medicine of the University of Southern California, Los Angeles.
Kiros BerhaneKeck School of Medicine of the University of Southern California, Los Angeles.
Rob McConnellKeck School of Medicine of the University of Southern California, Los Angeles.
Anna H WuKeck School of Medicine of the University of Southern California, Los Angeles.
Laura A BakerUniversity of Southern California Dornsife College of Letters, Arts, and Sciences, Los Angeles.
Jiu-Chiuan ChenKeck School of Medicine of the University of Southern California, Los Angeles.
University of Southern California · USSonoma Technology (United States) · USUC Irvine Health · US

Funding

Translational Research Support CoreP30ES007048 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Joseph Leo Wiemels · 1996 to 2026
$46.4M
RISK FACTORS FOR ANTISOCIAL BEHAVIORR01MH058354 · NIMH · UNIVERSITY OF SOUTHERN CALIFORNIA · PI BAKER, LAURA A · 2000 to 2013
$8.5M
Neurodevelopment in Urban Environments: Role of Exposure to Ambient Air PollutionR21ES022369 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI BAKER, LAURA A, CHEN, JIU-CHIUAN · 2013 to 2014
$468k
Early-Life Exposure to Urban Air Pollution and Externalizing Behaviors in YouthF31ES025080 · NIEHS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI YOUNAN, DIANA B · 2015 to 2016
$74k
NIEHS NIH HHS F31 ES025080NIEHS NIH HHS P30 ES007048NIEHS NIH HHS R21 ES022369NIMH NIH HHS R01 MH058354
6 · The paper itself

Abstract

objectiveNeighborhood greenspace improves mental health of urban-dwelling populations, but its putative neurobehavioral benefits in adolescents remain unclear. We conducted a prospective study on urban-dwelling adolescents to examine the association between greenspace in residential neighborhood and aggressive behaviors.

methodParticipants (n = 1,287) of the Risk Factors for Antisocial Behavior Study, a multi-ethnic cohort of twins and triplets born in 1990 to 1995 and living in Southern California, were examined in 2000 to 2012 (aged 9-18 years) with repeated assessments of their aggressive behaviors by the parent-reported Child Behavior Checklist. Normalized Difference Vegetation Index (NDVI) derived from satellite imagery was used as a proxy for residential neighborhood greenspace aggregated over various spatiotemporal scales before each assessment. Multilevel mixed-effects models were used to estimate the effects of greenspace on aggressive behaviors, adjusting for within-family/within-individual correlations and other potential confounders.

resultsBoth short-term (1- to 6-month) and long-term (1- to 3-year) exposures to greenspace within 1,000 meters surrounding residences were associated with reduced aggressive behaviors. The benefit of increasing vegetation over the range (∼0.12 in NDVI) commonly seen in urban environments was equivalent to approximately 2 to 2.5 years of behavioral maturation. Sociodemographic factors (e.g., age, gender, race/ethnicity, and socioeconomic status) and neighborhood quality did not confound or modify these associations, and the benefits remained after accounting for temperature.

conclusionOur novel findings support the benefits of neighborhood greenspace in reducing aggressive behaviors of urban-dwelling adolescents. Community-based interventions are needed to determine the efficacy of greenspace as a preemptive strategy to reduce aggressive behaviors in urban environments.

Indexed as

Adolescent BehaviorAggressionResidence CharacteristicsUrban PopulationAdolescentCaliforniaChildFemaleHumansMaleParks, Recreationaladolescentsaggressionenvironmentepidemiologygreenspace

Identifiers

PMID27343886
PMCPMC4924128
OpenAlexW2381254823

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.