Evidence map›Paper›PMID 26974653›Full record

ArticlePloS one2016

Chlamydia trachomatis Pgp3 Antibody Persists and Correlates with Self-Reported Infection and Behavioural Risks in a Blinded Cohort Study.

Patrick J Horner, Gillian S Wills, Antoinette Righarts, Sueli Vieira, Daphne Kounali, Dhanraj Samuel, Alan Winston, David Muir, Nigel P Dickson, Myra O McClure

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed
6.1field-weighted citation impact, top 4% 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

41 citing papers in PubMed, 60 citations in OpenAlex.

  1. Double-antigen sandwich ELISA based on chimeric antigens for detection of antibodies to Trypanosoma cruzi in human sera - A phase II study.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2026
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  5. UnveilingiScience · 2025
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  8. Risk factors associated with IgG seropersistence toEpidemiology and infection · 2025
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  12. Article
  13. The serodiagnositic value ofFrontiers in public health · 2024
    Article
  14. Antibody responses toFrontiers in cellular and infection microbiology · 2024
    Article
  15. Article
  16. Article
  17. Association between serumFrontiers in public health · 2023
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  18. Plasmid-mediated virulence inFrontiers in cellular and infection microbiology · 2023
    Review
  19. Article
  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

10 authors at 5 institutions in 2 countries.

Patrick J HornerJefferiss Trust Laboratories, Wright-Fleming Institute, Imperial College London, London, United Kingdom.
Gillian S WillsJefferiss Trust Laboratories, Wright-Fleming Institute, Imperial College London, London, United Kingdom.
Antoinette RighartsDepartment of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand.
Sueli VieiraJefferiss Trust Laboratories, Wright-Fleming Institute, Imperial College London, London, United Kingdom.
Daphne KounaliSchool of Social and Community Medicine, University of Bristol, Bristol, United Kingdom.
Dhanraj SamuelPublic Health for England, Colindale, London, United Kingdom.
Alan WinstonJefferiss Trust Laboratories, Wright-Fleming Institute, Imperial College London, London, United Kingdom.
David MuirDepartment of Infection and Immunity, Imperial College Healthcare Trust, London, United Kingdom.
Nigel P DicksonDepartment of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand.
Myra O McClureJefferiss Trust Laboratories, Wright-Fleming Institute, Imperial College London, London, United Kingdom.
Imperial College London · GBPublic Health England · GBUniversity of Otago · NZImperial College Healthcare NHS Trust · GBUniversity of Bristol · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Chlamydia trachomatis (Ct) serological studies in populations could help monitor changes in lifetime cumulative risk of infection. We developed a double-antigen sandwich ELISA based on the Ct-specific Pgp3 antigen, then tested blind stored sera from over 800 participants in a New Zealand birth cohort from Dunedin at ages 26, 32 and 38. The double-antigen sandwich ELISA was more sensitive than our previously characterised indirect Pgp3 ELISA. Pgp3 antibody was detected more often in women compared to men and correlated with increasing numbers of sexual partners, self-reported Ct, and younger age at sexual debut in both women and men. At age 26, 24.1% (99/411) of women were Pgp3 seropositive, as were 79.5% (35/44) of those reporting Ct infection; Pgp3 antibody persisted to age 38 in 96.5% (83/86). In men at age 26, the figures were 10.7% (47/442) and 25.0% (6/24), respectively, with high (83.9%) antibody persistence to age 38. At age 38, among those Pgp3 seropositive, 63.3% of women and 83.1% of men had not reported Ct infection. Thus, Ct-specific Pgp3 antibody was detected in most women reporting Ct infection and correlated with risk of infection in those who did not, with most infections remaining undetected. As this antibody persisted for at least twelve years in 96% of these women, serology could be used to evaluate Ct prevention programmes among women.

Indexed as

Self ReportSexual BehaviorAdultAntibodies, BacterialAntigens, BacterialArea Under CurveBacterial ProteinsChlamydia InfectionsChlamydia trachomatisCohort StudiesEnzyme-Linked Immunosorbent AssayFemaleHumansMaleNew ZealandRisk FactorsAntibodies, BacterialAntigens, BacterialBacterial Proteinspgp3 protein, Chlamydia

Identifiers

PMID26974653
PMCPMC4790965
OpenAlexW2297473547

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.