Evidence map›Paper›PMID 33502254›Full record

ArticleEnvironmental health perspectives2021

Redlines and Greenspace: The Relationship between Historical Redlining and 2010 Greenspace across the United States.

Anthony Nardone, Kara E Rudolph, Rachel Morello-Frosch, Joan A Casey

Abstract read
In one paragraph

Article in Environmental health perspectives, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 160 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
160citing papers in PubMed, 4 pooled it
–field-weighted citation impact
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

160 citing papers in PubMed, 4 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Inequalities in noise will affect urban wildlife.Nature ecology & evolution · 2024
    Pooled it
  5. Trial
  6. Historic residential segregation impacts biodiversity data availability disparately across the tree of life.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  7. From past, persisting, and consolidating ecologies of segregation to ecologies of repair.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  8. Beyond redlining: Gentrification, displacement, disadvantages, and exclusivity predict urban environmental and health inequities.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  9. Article
  10. Enhancing Gun Violence Surveillance with Endemic-Epidemic Modeling: A Case Study in Washington, D.C.Journal of urban health : bulletin of the New York Academy of Medicine · 2026
    Article
  11. Redlining, Urban Heat, and Climate Hazards: Impacts on Children's Cardiometabolic Health.Journal of urban health : bulletin of the New York Academy of Medicine · 2026
    Article
  12. Article
  13. Article
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  16. Revisiting 'environmental effects': Directions for multidisciplinary investigations of air quality and psychopathology.Clinical psychological science : a journal of the Association for Psychological Science · 2026
    Article
  17. Article
  18. Article
  19. Article
  20. Article

100 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Anthony NardoneUniversity of California (UC) Berkeley-UC San Francisco (UCSF) Joint Medical Program, UC Berkeley School of Public Health and UCSF School of Medicine, Berkeley and San Francisco, California, USA.
Kara E RudolphDepartment of Epidemiology, Columbia University Mailman School of Public Health, New York, New York, USA.
Rachel Morello-FroschSchool of Public Health and Department of Environmental Science, Policy and Management, UC Berkeley, Berkeley, California, USA.
Joan A CaseyDepartment of Environmental Health Sciences, Columbia University Mailman School of Public Health, New York, New York, USA.

Funding

True Metal fac coreP30ES009089 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MATTHEW S PERZANOWSKI · 1998 to 2026
$44.7M
The Illinois Kids Development Study ECHO Pregnancy and Pediatric CohortUH3OD023272 · OD · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI Andrea Aguiar, Susan L Schantz · 2018 to 2026
$18.6M
The Illinois Kids Development Study ECHO Pregnancy and Pediatric CohortUG3OD023272 · OD · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI SCHANTZ, SUSAN L · 2016 to 2024
$7.2M
The UCSF Pregnancy Exposures to Environmental Chemicals (PEEC) Children's CenterP01ES022841 · NIEHS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI WOODRUFF, TRACEY J. · 2013 to 2018
$3.9M
The Impact of Unconventional Natural Gas Development on Maternal, Perinatal, and Childhood Health: an Electronic Health Record ApproachR00ES027023 · NIEHS · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI CASEY, JOAN A · 2019 to 2021
$747k
NIEHS NIH HHS P01 ES022841NIEHS NIH HHS P30 ES009089NIEHS NIH HHS R00 ES027023NIH HHS UG3 OD023272NIH HHS UH3 OD023272
6 · The paper itself

Abstract

introductionRedlining, a racist mortgage appraisal practice of the 1930s, established and exacerbated racial residential segregation boundaries in the United States. Investment risk grades assigned

objectivesWe compared 2010 normalized difference vegetation index (NDVI) across previous HOLC neighborhood grades using propensity score restriction and matching.

methodsSecurity map shapefiles were downloaded from the Mapping Inequality Project. Neighborhood investment risk grades included A (best, green), B (blue), C (yellow), and D (hazardous, red, i.e., redlined). We used 2010 satellite imagery to calculate the average NDVI for each HOLC neighborhood. Our main outcomes were 2010 annual average NDVI and summer NDVI. We assigned areal-apportioned 1940 census measures to each HOLC neighborhood. We used propensity score restriction, matching, and targeted maximum likelihood estimation to limit model extrapolation, reduce confounding, and estimate the association between HOLC grade and NDVI for the following comparisons: Grades B vs. A, C vs. B, and D vs. C.

resultsAcross 102 urban areas (4,141 HOLC polygons), annual average DISCUSSION: Estimates adjusted for historical characteristics indicate that neighborhoods assigned worse HOLC grades in the 1930s are associated with reduced present-day greenspace. https://doi.org/10.1289/EHP7495.

Indexed as

Models, StatisticalParks, RecreationalSocial SegregationCensusesHumansPopulation DensityRacial GroupsResidence CharacteristicsUnited States

Identifiers

PMID33502254
PMCPMC7839347

What OpenQuestion holds

Textmetadata
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.