Evidence map›Paper›PMID 29987982›Full record

ArticleThe British journal of radiology2018

Mammographic detection of breast cancer in a non-screening country.

Delgermaa Demchig, Claudia Mello-Thoms, Warwick B Lee, Khulan Khurelsukh, Asai Ramish, Patrick C Brennan

Abstract readComparative Study
In one paragraph

Article in The British journal of radiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Review
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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.

Delgermaa Demchig1 Medical Image Optimization and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney , Sydney, NSW , Australia.
Claudia Mello-Thoms1 Medical Image Optimization and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney , Sydney, NSW , Australia.
Warwick B Lee1 Medical Image Optimization and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney , Sydney, NSW , Australia.
Khulan Khurelsukh2 Department of Diagnostic Radiology, Intermed Hospital, Ulaanbaatar, Mongolia.
Asai Ramish3 Department of Diagnostic Radiology, National Cancer Center , Ulaanbaatar , Mongolia.
Patrick C Brennan1 Medical Image Optimization and Perception Group (MIOPeG), Discipline of Medical Radiation Sciences, Faculty of Health Sciences, University of Sydney , Sydney, NSW , Australia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objective: To compare the diagnostic accuracy between radiologists' from a country with and without breast cancer screening.

methods: All participating radiologists gave informed consent. A test-set involving 60 mammographic cases (20 cancer and 40 non-cancer) were read by 11 radiologists from a non-screening (NS) country during a workshop in July 2016. 52 radiologists from a screening country read the same test-set at the Royal Australian and New Zealand College of Radiologists' meetings in July 2015. The screening radiologists were classified into two groups: those with less than or equal to 5 years of experience; those with more than 5 years of experience, and each group was compared to the group of NS radiologists. A Kruskal-Wallis test followed by post-hoc multiple comparisons test were used to compare measures of diagnostic accuracy among the reader groups.

results: The diagnostic accuracy of the NS radiologists was significantly lower in terms of sensitivity [mean = 54.0; 95% confidence interval (CI) (40.0-67.0)], location sensitivity [mean = 26.0; 95% CI (16.0-37.0)], receive roperating characteristic area under curve [mean = 73.0; 95% CI (66.5-81.0)] and Jackknifefree-response receiver operating characteristics figure-of-merit [mean = 45.0; 95% CI (40.0-50.0)] when compared with the less and more experienced screening radiologists, whilst no difference in specificity [mean = 75.0; 95% CI (70.0- 81.0)] was found. No significant differences in all measured diagnostic accuracy were found between the two groups of screening radiologists.

conclusion: The mammographic performance of a group of radiologists from a country without screening program was suboptimal compared with radiologists from Australia. ADVANCES IN KNOWLEDGE:: Identifying mammographic performance in developing countries is required to optimize breast cancer diagnosis.

Indexed as

AdultAgedBreast NeoplasmsClinical CompetenceEarly Detection of CancerFemaleHumansMammographyMiddle AgedMongoliaProspective StudiesRadiologistsSensitivity and Specificity

Identifiers

PMID29987982
PMCPMC6475936

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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.