Evidence map›Paper›PMID 20459831›Full record

SynthesisRespiratory research2010

The effects of long-acting bronchodilators on total mortality in patients with stable chronic obstructive pulmonary disease.

Agnes Kliber, Larry D Lynd, Don D Sin

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Respiratory research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 2 pooled it
5.5field-weighted citation impact, top 4% 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

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

  1. Long-acting beta2-agonists for chronic obstructive pulmonary disease.The Cochrane database of systematic reviews · 2013
    Pooled it
  2. Safety of indacaterol in the treatment of patients with COPD.International journal of chronic obstructive pulmonary disease · 2011
    Pooled it
  3. Article
  4. Respiratory parameters predict poor outcome in COPD patients, category GOLD 2017 B.International journal of chronic obstructive pulmonary disease · 2018
    Article
  5. Review
  6. Strategies for reducing the risk of cardiovascular disease in patients with chronic obstructive pulmonary disease.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2015
    Review
  7. Review
  8. Review
  9. Article
  10. Article
  11. The safety of long-acting β2-agonists in the treatment of stable chronic obstructive pulmonary disease.International journal of chronic obstructive pulmonary disease · 2013
    Review
  12. Review
  13. Review
  14. 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 at 1 institution in 1 country.

Agnes KliberDepartment of Medicine (Respiratory Division), University of British Columbia, 6040 Iona Drive, Vancouver, V6T 2E8, Canada.
Larry D Lynd
Don D Sin
University of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic obstructive pulmonary disease (COPD) is the 4th leading cause of mortality worldwide. Long-acting bronchodilators are considered first line therapies for patients with COPD but their effects on mortality are not well known. We performed a comprehensive systematic review and meta-analysis to evaluate the effects of long-acting bronchodilators on total mortality in stable COPD.

methodsUsing MEDLINE, EMBASE and Cochrane Systematic Review databases, we identified high quality randomized controlled trials of tiotropium, formoterol, salmeterol, formoterol/budesonide or salmeterol/fluticasone in COPD that had a follow-up of 6 months or longer and reported on total mortality. Two reviewers independently abstracted data from the original trials and disagreements were resolved by iteration and consensus.

resultsTwenty-seven trials that included 30,495 patients were included in the review. Relative risk (RR) for total mortality was calculated for each of the study and pooled together using a random-effects model. The combination of inhaled corticosteroid (ICS) and long-acting beta-2 agonist (LABA) therapy was associated with reduced total mortality compared with placebo (RR, 0.80; p = 0.005). Neither tiotropium (RR, 1.08; p = 0.61) nor LABA by itself (RR, 0.90; p = 0.21) was associated with mortality.

conclusionsA combination of ICS and LABA reduced mortality by approximately 20%. Neither tiotropium nor LABA by itself modifies all-cause mortality in COPD.

Indexed as

Adrenergic beta-2 Receptor AgonistsAdministration, InhalationAdrenal Cortex HormonesAdrenergic beta-AgonistsBronchodilator AgentsChi-Square DistributionCholinergic AntagonistsDrug CombinationsEvidence-Based MedicineHumansPulmonary Disease, Chronic ObstructiveRisk AssessmentRisk FactorsTime FactorsTreatment OutcomeAdrenal Cortex HormonesAdrenergic beta-2 Receptor AgonistsAdrenergic beta-AgonistsBronchodilator AgentsCholinergic AntagonistsDrug Combinations

Identifiers

PMID20459831
PMCPMC2876086
OpenAlexW1986085065

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.