Evidence map›Paper›PMID 23442198›Full record

ArticleBMC infectious diseases2013

The development and validation of dried blood spots for external quality assurance of syphilis serology.

Pieter W Smit, Thomas van der Vlis, David Mabey, John Changalucha, Julius Mngara, Benjamin D Clark, Aura Andreasen, Jim Todd, Mark Urassa, Basia Zaba and 1 more

Open access · goldAbstract readValidation Study
In one paragraph

Article in BMC infectious diseases, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.4field-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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Review
  6. Absence of Serological Evidence of Exposure toThe American journal of tropical medicine and hygiene · 2019
    Article
  7. Syphilis.Nature reviews. Disease primers · 2017
    Review
  8. Review
  9. Article
  10. Article
  11. Community seroprevalence survey for yaws and trachoma in the Western Division of Fiji.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2016
    Article
  12. Article
  13. Article
  14. Article
  15. 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

11 authors at 3 institutions in 3 countries.

Pieter W SmitLeiden Cytology and Pathology Laboratory, Leiden, The Netherlands. Pieter.smit@lshtm.ac.uk
Thomas van der Vlis
David Mabey
John Changalucha
Julius Mngara
Benjamin D Clark
Aura Andreasen
Jim Todd
Mark Urassa
Basia Zaba
Rosanna W Peeling
University of London · GBNational Institute for Medical Research · TZLeiden University · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSyphilis causes up to 1,500,000 congenital syphilis cases annually. These could be prevented if all pregnant women were screened, and those with syphilis treated with a single dose of penicillin before 28 weeks gestation. In recent years, rapid point-of-care tests have allowed greater access to syphilis screening, especially in rural or remote areas, but the lack of quality assurance of rapid testing has been a concern. We determined the feasibility of using dried blood spots (DBS) as specimens for quality assurance of syphilis serological assays.

methodsWe developed DBS extraction protocols for use with Treponema pallidum particle agglutination assay (TPPA), Treponema pallidum haemagglutination assay (TPHA) and an enzyme immunoassay (EIA) and compared the results with those using matching plasma samples from the same patient.

resultsSince DBS samples showed poor performance with TPHA and EIA (TPHA sensitivity was 50.5% (95% confidence interval: 39.9-61.2%) and EIA specificity was 50.4% (95% CI: 43.7-57.1%), only the DBS TPPA was used in the final evaluation. DBS TPPA showed an sensitivity of 95.5% (95% CI: 91.3-98.0%) and a specificity of 99.0% (95% CI: 98.1-99.5%) compared to TPPA using plasma samples as a reference.

conclusionDBS samples can be recommended for use with TPPA, and may be of value for external quality assurance of point-of-care syphilis testing.

Indexed as

Agglutination TestsAdolescentAdultAgedAged, 80 and overAntibodies, BacterialFemaleHumansMaleMiddle AgedPregnancyReproducibility of ResultsSensitivity and SpecificitySyphilis SerodiagnosisTreponema pallidumYoung AdultAntibodies, Bacterial

Identifiers

PMID23442198
PMCPMC3586363
OpenAlexW2091057801

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.