Evidence map›Paper›PMID 11761200›Full record

ArticleThe British journal of general practice : the journal of the Royal College of General Practitioners2001

The predictive value of asthma medications to identify individuals with asthma--a study in German general practices.

W Himmel, E Hummers-Pradier, H Schümann, M M Kochen

Open access · greenAbstract readMulticenter Study
In one paragraph

Article in The British journal of general practice : the journal of the Royal College of General Practitioners, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 33% 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

9 citing papers in PubMed, 27 citations in OpenAlex.

  1. Article
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  5. Electronic health record-based assessment of oral corticosteroid use in a population of primary care patients with asthma: an observational study.Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology · 2013
    Article
  6. Prescriptions as a proxy for asthma in children: a good choice?European journal of clinical pharmacology · 2010
    Article
  7. Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

W HimmelDepartment of General Practice, University of Göttingen, Germany. whimmel@gwdg.de
E Hummers-Pradier
H Schümann
M M Kochen
University of Göttingen · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe assessment of prescribing performance by aggregated measures mainly developed from automated databases is often helpful for general practitioners. For asthma treatment, the frequently applied ratio of anti-inflammatory to bronchodilator drugs may, however, be misleading if the specificity of a drug for the treatment of asthma, compared with other diseases, is unknown.

aimTo test the association of specific drugs with the diagnosis of asthma compared with other diagnoses. DESIGN OF STUDY: Cross-sectional study analysing prescription data from a retrospective chart review.

settingEight general practices and one community respiratory practice in a town in Northern Germany.

methodAll patients in the participating practices who received at least one of the 50 asthma drugs most frequently prescribed in Germany within the past 12 weeks were identified. Odds ratios (ORs) with 95% confidence intervals (ClI) were calculated to reveal any association between a specific drug and the diagnosis of asthma. The unit of analysis was the item prescribed.

resultsTopical betamimetics (e.g salbutamol, fenoterol) were the most often prescribed asthma drugs in the general practices (52.1 ) and in the respiratory practice (57.6%). Inhaled steroids accounted for 15% and 13%; systemic steroids accounted for 10% and 13%, respectively. In the general practices, inhaled betamimetics had a moderate marker function for asthma (OR = 2.0; 95% CI = 1.14-3.58). A fixed oral combination drug of clenbuterol plus ambroxol was a marker drug against asthma (OR = 0.35; 95% CI = 0.20-0.61). In the respiratory practice, the diagnosis of asthma was strongly marked by fixed combinations of cromoglycate plus betamimetics (OR = 29.0; 95% CI = 6.86-122.24) and moderately by inhaled betamimetics (OR = 2.6; 95% CI = 1.28-5.14). In contrast, systemic steroids (OR = 0.24; 95% CI 0.10-0.57) and even inhaled steroids (OR = 0.46; 95% ClI= 0.22-0.96) proved to contradict the diagnosis of asthma.

conclusionOnly betamimetics were markers for asthma patients in both types of practices; inhaled steroids, however, were not. Combinations of cromoglycate were markers in the respiratory practice only. Limited specificity of drugs for a disease (e.g asthma) should be taken into account when analysing prescribing data that are not diagnosis linked.

Indexed as

AdultAgedAnti-Asthmatic AgentsAsthmaCross-Sectional StudiesDrug PrescriptionsFamily PracticeFemaleGermanyHumansMaleMiddle AgedRetrospective StudiesAnti-Asthmatic Agents

Identifiers

PMID11761200
PMCPMC1314143
OpenAlexW2219394369

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.