Evidence map›Paper›PMID 23505412›Full record

SynthesisPloS one2013

How methodologic differences affect results of economic analyses: a systematic review of interferon gamma release assays for the diagnosis of LTBI.

Olivia Oxlade, Marcia Pinto, Anete Trajman, Dick Menzies

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 5 pooled it
2.8field-weighted citation impact, top 9% 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

18 citing papers in PubMed, 5 syntheses or guidelines pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  6. Article
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  8. Review
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  10. Article
  11. Policy and practice of programmatic management of latent tuberculosis infection in The Netherlands.Journal of clinical tuberculosis and other mycobacterial diseases · 2017
    Article
  12. Immigrant screening for latent tuberculosis in Norway: a cost-effectiveness analysis.The European journal of health economics : HEPAC : health economics in prevention and care · 2017
    Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. An update on granulomatous diseases of the oral tissues.Dental clinics of North America · 2013
    Review
  18. 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

4 authors at 3 institutions in 3 countries.

Olivia OxladeDepartment of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America.
Marcia Pinto
Anete Trajman
Dick Menzies
McGill University · CAFundação Oswaldo Cruz · BRHarvard University · US

Funding

Canadian Institutes of Health Research FRN 106987
6 · The paper itself

Abstract

introductionCost effectiveness analyses (CEA) can provide useful information on how to invest limited funds, however they are less useful if different analysis of the same intervention provide unclear or contradictory results. The objective of our study was to conduct a systematic review of methodologic aspects of CEA that evaluate Interferon Gamma Release Assays (IGRA) for the detection of Latent Tuberculosis Infection (LTBI), in order to understand how differences affect study results.

methodsA systematic review of studies was conducted with particular focus on study quality and the variability in inputs used in models used to assess cost-effectiveness. A common decision analysis model of the IGRA versus Tuberculin Skin Test (TST) screening strategy was developed and used to quantify the impact on predicted results of observed differences of model inputs taken from the studies identified.

resultsThirteen studies were ultimately included in the review. Several specific methodologic issues were identified across studies, including how study inputs were selected, inconsistencies in the costing approach, the utility of the QALY (Quality Adjusted Life Year) as the effectiveness outcome, and how authors choose to present and interpret study results. When the IGRA versus TST test strategies were compared using our common decision analysis model predicted effectiveness largely overlapped. IMPLICATIONS: Many methodologic issues that contribute to inconsistent results and reduced study quality were identified in studies that assessed the cost-effectiveness of the IGRA test. More specific and relevant guidelines are needed in order to help authors standardize modelling approaches, inputs, assumptions and how results are presented and interpreted.

Indexed as

Cost-Benefit AnalysisDecision Support TechniquesHumansInterferon-gamma Release TestsLatent TuberculosisMass ScreeningModels, StatisticalQuality-Adjusted Life YearsQuality ControlTuberculin Test

Identifiers

PMID23505412
PMCPMC3591384
OpenAlexW2061427021

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.