Evidence map›Paper›PMID 35403239›Full record

ArticleStatistics in medicine2022

Bayesian sample size determination for diagnostic accuracy studies.

Kevin J Wilson, S Faye Williamson, A Joy Allen, Cameron J Williams, Thomas P Hellyer, B Clare Lendrem

Open access · hybridAbstract read
In one paragraph

Article in Statistics in medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

7 citing papers in PubMed, 9 citations in OpenAlex.

  1. Article
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  3. Interpreting frequentist hypothesis tests: insights from Bayesian inference.Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2023
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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

6 authors at 2 institutions in 1 country.

Kevin J WilsonSchool of Mathematics, Statistics & Physics, Newcastle University, Tyne and Wear, UK.ORCID 0000-0001-9450-862X
S Faye WilliamsonBiostatistics Research Group, Population Health Sciences Institute, Newcastle University, Tyne and Wear, UK.ORCID 0000-0002-1800-6625
A Joy AllenNIHR Newcastle In Vitro Diagnostics Co-operative, Newcastle University, Tyne and Wear, UK.
Cameron J WilliamsSchool of Mathematics, Statistics & Physics, Newcastle University, Tyne and Wear, UK.
Thomas P HellyerTranslational and Clinical Research Institute, Newcastle University, Tyne and Wear, UK.
B Clare LendremNIHR Newcastle In Vitro Diagnostics Co-operative, Newcastle University, Tyne and Wear, UK.
Newcastle University · GBNIHR Leeds In Vitro Diagnostics Co-operative · GB

Funding

Department of HealthWellcome Trust
6 · The paper itself

Abstract

The development of a new diagnostic test ideally follows a sequence of stages which, among other aims, evaluate technical performance. This includes an analytical validity study, a diagnostic accuracy study, and an interventional clinical utility study. In this article, we propose a novel Bayesian approach to sample size determination for the diagnostic accuracy study, which takes advantage of information available from the analytical validity stage. We utilize assurance to calculate the required sample size based on the target width of a posterior probability interval and can choose to use or disregard the data from the analytical validity study when subsequently inferring measures of test accuracy. Sensitivity analyses are performed to assess the robustness of the proposed sample size to the choice of prior, and prior-data conflict is evaluated by comparing the data to the prior predictive distributions. We illustrate the proposed approach using a motivating real-life application involving a diagnostic test for ventilator associated pneumonia. Finally, we compare the properties of the approach against commonly used alternatives. The results show that, when suitable prior information is available, the assurance-based approach can reduce the required sample size when compared to alternative approaches.

Indexed as

Diagnostic Tests, RoutineBayes TheoremHumansReproducibility of ResultsSample SizeBayesian assurancebinomial intervalscontingency tablespower calculationssensitivityspecificity

Identifiers

PMID35403239
PMCPMC9325402
OpenAlexW3194304418

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.