Evidence map›Paper›PMID 16330475›Full record

SynthesisBMJ (Clinical research ed.)2006

Systematic review and meta-analysis of randomised controlled trials of gastro-oesophageal reflux interventions for chronic cough associated with gastro-oesophageal reflux.

A B Chang, T J Lasserson, T O Kiljander, F L Connor, J T Gaffney, L A Garske

Open access · bronzeAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ (Clinical research ed.), 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 3 pooled it
8.5field-weighted citation impact, top 2% 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

44 citing papers in PubMed, 3 syntheses or guidelines pooled it, 174 citations in OpenAlex.

  1. Diagnosis and Treatment of Adult Patients with Cough.Respiration; international review of thoracic diseases · 2025
    Guideline
  2. Guideline
  3. Pooled it
  4. Trial
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  6. Trial
  7. Trial
  8. Article
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  11. Review
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  15. Review
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  17. Article
  18. Fundoplication for laryngopharyngeal reflux despite preoperative dysphagia.Annals of the Royal College of Surgeons of England · 2017
    Article
  19. Review
  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

6 authors at 4 institutions in 2 countries.

A B ChangDepartment of Respiratory Medicine, Royal Children's Hospital, Herston, Brisbane, Qld 4029, Australia. annechang@ausdoctors.net
T J Lasserson
T O Kiljander
F L Connor
J T Gaffney
L A Garske
Royal Brisbane and Women's Hospital · AUPrincess Alexandra Hospital · AURoyal Children's Hospital · AUSt George's, University of London · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the efficacy of treatment for gastro-oesophageal reflux disease (GORD) on chronic cough in children and adults without an underlying respiratory disease.

designSystematic review and meta-analysis. DATA SOURCES: Cochrane, Medline, and Embase databases, references from review articles. INCLUDED STUDIES: Randomised controlled trials on GORD treatment for cough in children and adults without primary lung disease. Two reviewers independently selected studies and extracted paediatric and adult data on primary (clinical failure) and secondary outcomes.

results11 studies were included. Meta-analysis was limited to five studies in adults that compared proton pump inhibitors with placebo. All outcomes favoured proton pump inhibitors: the odds ratio for clinical failure (primary outcome) was 0.24 (95% confidence interval 0.04 to 1.27); number needed to treat (NNT) was 5 (harm 50 to infinity to benefit 2.5). For secondary outcomes, the standardised mean difference between proton pump inhibitors and placebo was -0.51 (-1.02 to 0.01) for mean cough score at the end of the trial and -0.29 (-0.62 to 0.04) for change in cough score at the end of the trial. Subgroup analysis with generic inverse variance analysis showed a significant mean change in cough (-0.41 SD units, -0.75 to -0.07).

conclusionUse of a proton pump inhibitor to treat cough associated with GORD has some effect in some adults. The effect, however, is less universal than suggested in consensus guidelines on chronic cough and its magnitude of effect is uncertain.

Indexed as

Proton Pump InhibitorsAdultChildChronic DiseaseCoughFemaleGastroesophageal RefluxHumansMaleRandomized Controlled Trials as TopicProton Pump Inhibitors

Identifiers

PMID16330475
PMCPMC1325125
OpenAlexW2116422922

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.