Evidence map›Paper›PMID 32448211›Full record

ArticleBMC public health2020

Characterising urban green space density and footpath-accessibility in models of BMI.

Philip Carthy, Sean Lyons, Anne Nolan

Open access · goldAbstract read
In one paragraph

Article in BMC public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 39% 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

3 citing papers in PubMed, 13 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 2 countries.

Philip CarthyEconomic and Social Research Institute, Whitaker Square, Sir John Rogerson's Quay, Dublin 2, Ireland.
Sean LyonsEconomic and Social Research Institute, Whitaker Square, Sir John Rogerson's Quay, Dublin 2, Ireland. sean.lyons@esri.ie.ORCID http://orcid.org/0000-0002-3526-6947
Anne NolanEconomic and Social Research Institute, Whitaker Square, Sir John Rogerson's Quay, Dublin 2, Ireland.
Economic and Social Research Institute · IE

Funding

ESRI's Environment Research Programme, which is, in turn, funded by Ireland's Environmental Protection Agency (EPA) N/a
6 · The paper itself

Abstract

backgroundWhile exposure to urban green spaces has been associated with various physical health benefits, the evidence linking these spaces to lower BMI, particularly among older people, is mixed. We ask whether footpath availability, generally unobserved in the existing literature, may mediate exposure to urban green space and help explain this volatility in results. The aim of this study is to add to the literature on the association between urban green space and BMI by considering alternative measures of urban green space that incorporate measures of footpath availability.

methodsWe conduct a cross-sectional study combining data from The Irish Longitudinal Study on Ageing and detailed land use information. We proxy respondents' exposure to urban green spaces at their residential addresses using street-side and area buffers that take account of the presence of footpaths. Generalised linear models are used to test the association between exposure to several measures of urban green space and BMI.

resultsRelative to the third quintile, exposure to the lowest quintile of urban green space, as measured within a 1600 m footpath-accessible network buffer, is associated with slightly higher BMI (marginal effect: 0.80; 95% CI: 0.16-1.44). The results, however, are not robust to small changes in how green space is measured and no statistically significant association between urban green spaces and BMI is found under other variants of our regression model.

conclusionThe relationship between urban green spaces and BMI among older adults is highly sensitive to the characterisation of local green space. Our results suggest that there are some unobserved factors other than footpath availability that mediate the relationship between urban green spaces and weight status.

Indexed as

Body Mass IndexEnvironment DesignResidence CharacteristicsUrban PopulationWalkingAgedAged, 80 and overCross-Sectional StudiesDatabases, FactualFemaleHumansIrelandLongitudinal StudiesMaleMiddle AgedBody mass indexFootpathsIrelandOlder adultsUrban green space

Identifiers

PMID32448211
PMCPMC7245785
OpenAlexW3026096797

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.