Evidence map›Paper›PMID 14663125›Full record

ArticleSexually transmitted infections2003

Use of PCR in the diagnosis of early syphilis in the United Kingdom.

H M Palmer, S P Higgins, A J Herring, M A Kingston

Open access · bronzeAbstract readEvaluation StudyMulticenter Study
In one paragraph

Article in Sexually transmitted infections, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 148 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. The Proportion ofOpen forum infectious diseases · 2025
    Article
  5. Update on syphilis diagnostics.Current opinion in infectious diseases · 2025
    Review
  6. CDC Laboratory Recommendations for Syphilis Testing, United States, 2024.MMWR. Recommendations and reports : Morbidity and mortality weekly report. Recommendations and reports · 2024
    Article
  7. Review
  8. Analysis ofInfection and drug resistance · 2022
    Article
  9. Article
  10. Article
  11. Article
  12. Molecular and Direct Detection Tests for Treponema pallidum Subspecies pallidum: A Review of the Literature, 1964-2017.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2020
    Review
  13. Article
  14. Review
  15. Article
  16. Syphilis: presentations in general medicine.Clinical medicine (London, England) · 2016
    Article
  17. Review
  18. Syphilis testing in blood donors: an update.Blood transfusion = Trasfusione del sangue · 2015
    Review
  19. The endemic treponematoses.Clinical microbiology reviews · 2014
    Review
  20. 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 1 institution in 1 country.

H M PalmerGenitourinary Infections Reference Laboratory, Public Health Laboratory, Bristol Royal Infirmary, Bristol BS2 8HW, UK. helen.palmer@luht.scot.nhs.uk
S P Higgins
A J Herring
M A Kingston
Edinburgh Royal Infirmary · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo evaluate a Treponema pallidum polymerase chain reaction (PCR) test in the laboratory diagnosis of early syphilis in the United Kingdom. SUBJECTS AND

settingMen and women attending genitourinary medicine clinics in England.

methodsA trial PCR service was offered for the analysis of swabs of ano-genital or oral ulcers suspected to be syphilitic in origin. Clinical details, results of treponemal serology, and other relevant laboratory tests carried out by the sending laboratories were obtained retrospectively by questionnaire.

resultsData from 98 patients, representing 100 episodes of ulceration, were analysed. The majority of patients (70) attended clinics in the Greater Manchester area. Eighty six patients were male and 58 were men who have sex with men (MSM), of whom 24 were HIV positive. PCR results agreed with the clinical diagnosis for 95 patients; samples from 26 patients were PCR positive and serologically diagnosed as primary (18) or secondary (8) syphilis, whereas 70 patients had PCR negative samples and were not diagnosed as having active syphilis. These data include two HIV positive patients who were PCR positive 12 and 21 days before their treponemal seroconversion. One positive PCR result was not supported by positive treponemal serology (this patient coincidentally received a 10 day course of co-amoxiclav 1 week after sampling). Three patients had negative PCR results but positive syphilis serology. The sensitivity, specificity, positive and negative predictive value for primary syphilis were 94.7%, 98.6%, 94.7%, and 98.6%, respectively, and for secondary syphilis these were 80.0%, 98.6%, 88.9%, and 97.2%, respectively.

conclusionPCR is a sensitive and specific test for T pallidum, and an important adjunct to dark ground microscopy and treponemal serology in diagnosing infectious syphilis in the United Kingdom.

Indexed as

DNA, BacterialFemaleHIV InfectionsHomosexuality, MaleHumansMalePolymerase Chain ReactionSensitivity and SpecificitySyphilisTreponema pallidumUnited KingdomDNA, Bacterial

Identifiers

PMID14663125
PMCPMC1744778
OpenAlexW2133883093

What OpenQuestion holds

Textmetadata
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.