Evidence map›Paper›PMID 19366997›Full record

ArticleJournal of epidemiology and community health2009

Variation of daily warm season mortality as a function of micro-urban heat islands.

A Smargiassi, M S Goldberg, C Plante, M Fournier, Y Baudouin, T Kosatsky

Abstract read
In one paragraph

Article in Journal of epidemiology and community health, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 1 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

50 citing papers in PubMed, 1 synthesis or guideline pooled it.

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  15. The heat penalty of walkable neighbourhoods.International journal of biometeorology · 2019
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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

6 authors.

A SmargiassiInstitut National de Santé Publique du Québec/Direction de Santé Publique de Montréal, Montréal, Québec H2L 1M3, Canada. asmargia@santepub-mtl.qc.ca
M S Goldberg
C Plante
M Fournier
Y Baudouin
T Kosatsky

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLittle attention has been paid to how heat-related health effects vary with the micro-urban variation of outdoor temperatures. This study explored whether people located in micro-urban heat islands are at higher risk of mortality during hot summer days.

methodsData used included (1) daily mortality for Montreal (Canada) for June-August 1990-2003, (2) daily mean ambient outdoor temperatures at the local international airport and (3) two thermal surface images (Landsat satellites, infrared wavelengths). A city-wide temperature versus daily mortality function was established on the basis of a case-crossover design; this function was stratified according to the surface temperature at decedents' place of death.

resultsThe risk of death on warm summer days in areas with higher surface temperatures was greater than in areas with lower surface temperatures.

conclusionsThis study suggests that measures aimed at reducing the temperature in micro-urban heat islands (eg, urban greening activities) may reduce the health impact of hot temperatures. Further studies are needed to document the variation of heat-related risks within cities and to evaluate the health benefits of measures aimed at reducing the temperature in micro-urban heat islands.

Indexed as

MortalityAgedEpidemiologic MethodsFemaleHot TemperatureHumansMaleQuebecSeasonsUrban Health

Identifiers

PMID19366997
PMCPMC2701553

What OpenQuestion holds

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Registered trials

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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.