Evidence map›Paper›PMID 15618231›Full record

ArticleBMJ (Clinical research ed.)2005

Bronchodilator treatment and deaths from asthma: case-control study.

H Ross Anderson, Jon G Ayres, Patricia M Sturdy, J Martin Bland, Barbara K Butland, Clare Peckitt, Jennifer C Taylor, Christina R Victor

Open access · bronzeAbstract read
In one paragraph

Article in BMJ (Clinical research ed.), 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
6.4field-weighted citation impact, top 3% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 124 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Asthma and COPD: A Focus on β-Agonists - Past, Present and Future.Handbook of experimental pharmacology · 2024
    Review
  7. Predictors of excessive short-acting βPostepy dermatologii i alergologii · 2023
    Article
  8. Review
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  10. Reducing short-acting beta-agonist overprescribing in asthma: lessons from a quality-improvement prescribing project in East London.The British journal of general practice : the journal of the Royal College of General Practitioners · 2022
    Article
  11. Article
  12. Article
  13. How does race and ethnicity effect the precision treatment of asthma?Expert review of precision medicine and drug development · 2019
    Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Review
  19. 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

8 authors at 3 institutions in 1 country.

H Ross AndersonDepartment of Community Health Sciences, St George's Hospital Medical School, London SW17 0RE. r.anderson@sghms.ac.uk
Jon G Ayres
Patricia M Sturdy
J Martin Bland
Barbara K Butland
Clare Peckitt
Jennifer C Taylor
Christina R Victor
St George's, University of London · GBSt George's Hospital · GBUniversity of Aberdeen · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the association between bronchodilator treatment and death from asthma.

designCase-control study.

setting33 health authorities or health boards in Great Britain.

participants532 patients under age 65 who died from asthma and 532 controls with a hospital admission for asthma matched for period, age, and area.

main outcome measuresOdds ratios for deaths from asthma associated with prescription of bronchodilators and other treatment, with sensitivity analyses adjusting for age at onset, previous hospital admissions, associated chronic obstructive lung disease, and number of other drug categories.

resultsAfter full adjustment, there were no significant associations with drugs prescribed in the 4-12 months before the index date. For prescriptions in the 1-5 years before, mortality was positively associated with inhaled short acting beta2 agonists (odds ratio 2.05, 95% confidence interval 1.26 to 3.33) and inversely associated with antibiotics (0.59, 0.39 to 0.89). The former association seemed to be confined to those aged 45-64, and the association with antibiotics was more pronounced in those under 45. Significant age interactions across all periods suggested inverse associations with oral steroids confined to the under 45 age group. An inverse association with long acting beta2 agonists and a positive association with methylxanthines in the 1-5 year period were non-significant.

conclusionThere was no evidence of adverse effects on mortality with medium to long term use of inhaled long acting beta2 agonist drugs. The association with short acting beta(2) agonists has several explanations, only one of which may be a direct adverse effect.

Indexed as

AdolescentAdrenergic beta-AgonistsAdultAge DistributionAge of OnsetAnti-Asthmatic AgentsAsthmaBronchodilator AgentsCase-Control StudiesChildChild, PreschoolHumansInfantMiddle AgedMuscarinic AntagonistsOdds RatioAdrenergic beta-AgonistsAnti-Asthmatic AgentsBronchodilator AgentsMuscarinic Antagonists

Identifiers

PMID15618231
PMCPMC544425
OpenAlexW2103586650

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.