Evidence map›Paper›PMID 23724907›Full record

ArticleBMC pulmonary medicine2013

Variability of antibiotic prescribing in patients with chronic obstructive pulmonary disease exacerbations: a cohort study.

Rachael Boggon, Richard Hubbard, Liam Smeeth, Martin Gulliford, Jackie Cassell, Susan Eaton, Munir Pirmohamed, Tjeerd-Pieter van Staa

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC pulmonary medicine, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 6% 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

17 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
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  6. Observational
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  10. Opportunities for primary care to reduce hospital admissions: a cross-sectional study of geographical variation.The British journal of general practice : the journal of the Royal College of General Practitioners · 2017
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  14. Quantifying the risk of multiple myeloma from symptoms reported in primary care patients: a large case-control study using electronic records.The British journal of general practice : the journal of the Royal College of General Practitioners · 2015
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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

8 authors at 7 institutions in 2 countries.

Rachael BoggonClinical Practice Research Datalink, Medicines and Healthcare products Regulatory Agency, 151 Buckingham Palace Road, London SW1W 9SZ, UK.
Richard Hubbard
Liam Smeeth
Martin Gulliford
Jackie Cassell
Susan Eaton
Munir Pirmohamed
Tjeerd-Pieter van Staa
Clinical Practice Research Datalink · GBBrighton and Sussex Medical School · GBKing's College London · GBLondon School of Hygiene & Tropical Medicine · GBUniversity of Liverpool · GBUniversity of Nottingham · GBUtrecht University · NL

Funding

Medical Research Council MR/K006584/1Wellcome Trust 098504
6 · The paper itself

Abstract

backgroundThe role of antibiotics in treating mild or moderate exacerbations in patients with acute chronic obstructive pulmonary disease (COPD) is unclear. The aims were to: (i) describe patient characteristics associated with acute exacerbations amongst a representative COPD population, (ii) explore the relationship between COPD severity and outcomes amongst patients with exacerbations, and (iii) quantify variability by general practice in prescribing of antibiotics for COPD exacerbations.

methodA cohort of 62,747 patients with COPD was identified from primary care general practices (GP) in England, and linked to hospital admission and death certificate data. Exacerbation cases were matched to three controls and characteristics compared using conditional logistic regression. Outcomes were compared using incidence rates and Cox regression, stratified by disease severity. Variability of prescribing at the GP level was evaluated graphically and by using multilevel models.

resultsCOPD severity was found to be associated with exacerbation and subsequent mortality (very severe vs. mild, odds ratio for exacerbation 2.12 [95%CI 19.5-2.32]), hazard ratio for mortality 2.14 [95%CI 1.59-2.88]). Whilst 61% of exacerbation cases were prescribed antibiotics, this proportion varied considerably between GP practices (interquartile range, 48-73%). This variation is greater than can be explained by patient characteristics alone.

conclusionsThere is significant variability between GP practices in the prescribing of antibiotics to COPD patients experiencing exacerbations. Combined with a lack of evidence on the effects of treatment, this supports the need and opportunity for a large scale pragmatic randomised trial of the prescribing of antibiotics for COPD patients with exacerbations, in order to clarify their effectiveness and long term outcomes whilst ensuring the representativeness of subjects.

Indexed as

Disease ProgressionPractice Patterns, Physicians'AdultAgedAged, 80 and overAnti-Bacterial AgentsCase-Control StudiesCohort StudiesFemaleHumansMaleMiddle AgedProspective StudiesPulmonary Disease, Chronic ObstructiveRegression AnalysisRetrospective StudiesAnti-Bacterial Agents

Identifiers

PMID23724907
PMCPMC3679783
OpenAlexW2101377818

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.