Evidence map›Paper›PMID 23356966›Full record

ArticleEnvironmental health : a global access science source2013

Time series analysis of fine particulate matter and asthma reliever dispensations in populations affected by forest fires.

Catherine T Elliott, Sarah B Henderson, Victoria Wan

Abstract read
In one paragraph

Article in Environmental health : a global access science source, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 2 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

37 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Non-accidental health impacts of wildfire smoke.International journal of environmental research and public health · 2014
    Pooled it
  3. Review
  4. Long-Term Greenness Effects of Urban Forests to Reduce PMInternational journal of environmental research and public health · 2025
    Article
  5. Article
  6. The Impact of Climate Change on Respiratory Care: A Scoping Review.The journal of climate change and health · 2024
    Article
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  8. Article
  9. Article
  10. Article
  11. Review
  12. Article
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  14. Review
  15. Article
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  18. Article
  19. Characterizing environmental asthma triggers and healthcare use patterns in Puerto Rico.The Journal of asthma : official journal of the Association for the Care of Asthma · 2020
    Article
  20. Article
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.

Catherine T ElliottBritish Columbia Center for Disease Control, Environmental Health Services, BC Centre for Disease Control, Main Floor, 655 12th Ave W, Vancouver, BC, V5Z 4R4, Canada. Catherine.Elliott@bccdc.ca
Sarah B Henderson
Victoria Wan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSeveral studies have evaluated the association between forest fire smoke and acute exacerbations of respiratory diseases, but few have examined effects on pharmaceutical dispensations. We examine the associations between daily fine particulate matter (PM2.5) and pharmaceutical dispensations for salbutamol in forest fire-affected and non-fire-affected populations in British Columbia (BC), Canada.

methodsWe estimated PM2.5 exposure for populations in administrative health areas using measurements from central monitors. Remote sensing data on fires were used to classify the populations as fire-affected or non-fire-affected, and to identify extreme fire days. Daily counts of salbutamol dispensations between 2003 and 2010 were extracted from the BC PharmaNet database. We estimated rate ratios (RR) and 95% confidence intervals (CIs) for each population during all fire seasons and on extreme fire days, adjusted for temperature, humidity, and temporal trends. Overall effects for fire-affected and non-fire-affected populations were estimated via meta-regression.

resultsFire season PM2.5 was positively associated with salbutamol dispensations in all fire-affected populations, with a meta-regression RR (95% CI) of 1.06 (1.04-1.07) for a 10 ug/m3 increase. Fire season PM2.5 was not significantly associated with salbutamol dispensations in non-fire-affected populations, with a meta-regression RR of 1.00 (0.98-1.01). On extreme fire days PM2.5 was positively associated with salbutamol dispensations in both population types, with a global meta-regression RR of 1.07 (1.04 - 1.09).

conclusionsSalbutamol dispensations were clearly associated with fire-related PM2.5. Significant associations were observed in smaller populations (range: 8,000 to 170,000 persons, median: 26,000) than those reported previously, suggesting that salbutamol dispensations may be a valuable outcome for public health surveillance during fire events.

Indexed as

Environmental ExposureFiresAir PollutantsAsthmaBritish ColumbiaDrug PrescriptionsEnvironmental MonitoringHumansParticle SizeParticulate MatterSeasonsSmokeTime FactorsAir PollutantsParticulate MatterSmoke

Identifiers

PMID23356966
PMCPMC3582455

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.