Evidence map›Paper›PMID 32353295›Full record

ArticleThe Lancet. Planetary health2020

Health impact assessment of Philadelphia's 2025 tree canopy cover goals.

Michelle C Kondo, Natalie Mueller, Dexter H Locke, Lara A Roman, David Rojas-Rueda, Leah H Schinasi, Mireia Gascon, Mark J Nieuwenhuijsen

Abstract readComment
PubMed Publisher
In one paragraph

Article in The Lancet. Planetary health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–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

26 citing papers in PubMed.

  1. 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
  2. Urban tree canopy fragmentation and child mortality in low- and middle-income countries.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Green Spaces with Fewer People Improve Self-Reported Affective Experience and Mood.International journal of environmental research and public health · 2023
    Article
  17. The Relationship between Perceptions and Objective Measures of Greenness.International journal of environmental research and public health · 2022
    Article
  18. COVID-19, green space exposure, and mask mandates.The Science of the total environment · 2022
    Article
  19. Effects of Self-Rated Health Status on Residents' Social-Benefit Perceptions of Urban Green Space.International journal of environmental research and public health · 2022
    Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Michelle C KondoNorthern Research Station, USDA Forest Service, Philadelphia, PA, USA. Electronic address: michelle.c.kondo@usda.gov.
Natalie MuellerISGlobal, Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; Centro de Investigación Biomédica en Red Instituto de Salud Carlos III, Madrid, Spain.
Dexter H LockeNorthern Research Station, USDA Forest Service, Baltimore, MD, USA.
Lara A RomanNorthern Research Station, USDA Forest Service, Philadelphia, PA, USA.
David Rojas-RuedaDepartment of Environmental and Radiological Health Sciences, Colorado State University, Fort Collins, CO, USA.
Leah H SchinasiDepartment of Environmental and Occupational Health, and Urban Health Collaborative, Dornsife School of Public Health, Drexel University, Philadelphia, PA, USA.
Mireia GasconISGlobal, Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; Centro de Investigación Biomédica en Red Instituto de Salud Carlos III, Madrid, Spain.
Mark J NieuwenhuijsenISGlobal, Parc de Recerca Biomèdica de Barcelona, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; Centro de Investigación Biomédica en Red Instituto de Salud Carlos III, Madrid, Spain.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCities across the world are undertaking ambitious projects to expand tree canopy by increasing the number of trees planted throughout public and private spaces. In epidemiological studies, greenspaces in urban environments have been associated with physical and mental health benefits for city dwellers. Greenworks Philadelphia is a plan to increase tree cover across Philadelphia (PA, USA) by the year 2025. We aimed to assess whether an increase in tree canopy or greenspace in Philadelphia could decrease mortality.

methodsWe did a greenspace health impact assessment to estimate the annual premature mortality burden for adult residents associated with projected changes in tree canopy cover in Philadelphia between 2014 and 2025. Using up-to-date exposure-response functions, we calculated the number of preventable annual premature deaths city-wide, and for areas of lower versus higher socioeconomic status, for each of three tree canopy scenarios: low, moderate and ambitious. The ambitious scenario reflected the city's goal of 30% tree canopy cover in each of the city's neighbourhoods; and low and moderate scenarios were based on the varying levels of plantable space across neighbourhoods.

findingsWe estimated that 403 (95% interval 298-618) premature deaths overall, including 244 (180-373) premature deaths in areas of lower socioeconomic status, could be prevented annually in Philadelphia if the city were able to meet its goal of increasing tree canopy cover to 30%.

interpretationBringing all of Philadelphia, and particularly its poorer neighbourhoods, up to the 30% goal of tree canopy cover is not without challenge. Nevertheless, policies are warranted that value urban greening efforts as health-promoting and cost-saving measures.

fundingSpanish Ministry of Science, Innovation and Universities, and Generalitat de Catalunya.

Indexed as

Parks, RecreationalTreesAdultCohort StudiesGoalsHealth Impact AssessmentHumansPhiladelphia

Identifiers

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.