Evidence map›Paper›PMID 29790947›Full record

ArticleJournal of the National Cancer Institute2019

Antibodies Against Chlamydia trachomatis and Ovarian Cancer Risk in Two Independent Populations.

Britton Trabert, Tim Waterboer, Annika Idahl, Nicole Brenner, Louise A Brinton, Julia Butt, Sally B Coburn, Patricia Hartge, Katrin Hufnagel, Federica Inturrisi and 8 more

Open access · bronzeAbstract read
In one paragraph

Article in Journal of the National Cancer Institute, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 61 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
61citing papers in PubMed, 1 pooled it
9.2field-weighted citation impact, top 2% 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

61 citing papers in PubMed, 1 synthesis or guideline pooled it, 89 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Microorganisms · 2026
    Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Causal Links Between Antibody-Mediated Immune Responses and Pancreatic Cancer Risk.Endocrine, metabolic & immune disorders drug targets · 2026
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Risk factors associated with IgG seropersistence toEpidemiology and infection · 2025
    Article
  17. Article
  18. Chlamydiosis in Animals.Animals : an open access journal from MDPI · 2024
    Review
  19. Appraisal of the causal effect ofmedRxiv : the preprint server for health sciences · 2024
    Article
  20. Article

1 more citing papers are in PubMed but not listed here.

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

18 authors at 11 institutions in 5 countries.

Britton TrabertDivision of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD.
Tim WaterboerInfections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Annika IdahlDepartment of Clinical Science, Obstetrics and Gynecology, Umeå University, Umeå, Sweden.
Nicole BrennerInfections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Louise A BrintonDivision of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD.
Julia ButtInfections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Sally B CoburnDivision of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD.
Patricia HartgeDivision of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD.
Katrin HufnagelInfections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Federica InturrisiInfections and Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Jolanta LissowskaDepartment of Epidemiology and Cancer Prevention, Cancer Center and M. Sklodowska-Curie Institute of Oncology, Warsaw, Poland.
Alexander MentzerWellcome Centre for Human Genetics, Oxford, UK.
Beata PeplonskaDepartment of Environmental Epidemiology, Nofer Institute of Occupational Medicine, Lodz, Poland.
Mark E ShermanDepartment of Pulmonary Medicine, Mayo Clinic, Jacksonville, FL.
Gillian S WillsJefferiss Research Trust Laboratories, Imperial College London, St Mary's Campus, London, UK.
Sarah C WoodhallNational Infection Service, Public Health England, London, UK.
Michael PawlitaMolecular Diagnostics of Oncogenic Infections Division, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Nicolas WentzensenDivision of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health, Bethesda, MD.
Heidelberg University · DENational Institutes of Health · USGerman Cancer Research Center · DECentre for Human Genetics · GBImperial College London · GBMayo Clinic in Florida · USNational Cancer Institute · USNofer Institute of Occupational Medicine · PLThe Maria Sklodowska-Curie National Research Institute of Oncology · PLUmeå University · SEUniversity College London · GB

Funding

PLCO Trial Etiologic and Early Marker StudyZIACP010152 · NCI · DIVISION OF CANCER EPIDEMIOLOGY AND GENETICS · PI MOORE, STEVEN · 2009 to 2025
$29.9M
6 · The paper itself

Abstract

backgroundPelvic inflammatory disease (PID) has been associated with ovarian cancer risk. To clarify the role of Chlamydia trachomatis and other infectious agents in the development of ovarian cancer, we evaluated the association of serologic markers with incident ovarian cancer using a staged approach in two independent populations.

methodsStudies included: 1) a case-control study in Poland (244 ovarian cancers/556 control subjects) and 2) a prospective nested case-control study in the PLCO Cancer Screening Trial (160 ovarian cancers/159 control subjects). Associations of serologic marker levels with ovarian cancer risk at diagnostic as well as higher thresholds, identified in Poland and independently evaluated in PLCO, were estimated using multivariable adjusted logistic regression.

resultsIn the Polish study, antibodies (based on laboratory cut-point) against the chlamydia plasmid-encoded Pgp3 protein (serological gold standard) were associated with increased ovarian cancer risk (adjusted odds ratio [OR] = 1.63, 95% confidence interval [CI] = 1.20 to 2.22); when a positive result was redefined at higher levels, ovarian cancer risk was increased (cut-point 2: OR = 2.00, 95% CI = 1.38 to 2.89; cut-point 3 [max OR]: OR = 2.19, 95% CI = 1.29 to 3.73). In the prospective PLCO study, Pgp3 antibodies were associated with elevated risk at the laboratory cut-point (OR = 1.43, 95% CI = 0.78 to 2.63) and more stringent cut-points (cut-point 2: OR = 2.25, 95% CI = 1.07 to 4.71); cut-point 3: OR = 2.53, 95% CI = 0.63 to 10.08). In both studies, antibodies against other infectious agents measured were not associated with risk.

conclusionsIn two independent populations, antibodies against prior/current C. trachomatis (Pgp3) were associated with a doubling in ovarian cancer risk, whereas markers of other infectious agents were unrelated. These findings lend support for an association between PID and ovarian cancer.

Indexed as

AdultAgedAntibodies, BacterialAntigens, BacterialBacterial ProteinsCase-Control StudiesChlamydia InfectionsChlamydia trachomatisFemaleFollow-Up StudiesHumansMiddle AgedOvarian NeoplasmsPolandPrognosisProspective StudiesAntibodies, BacterialAntigens, BacterialBacterial Proteinspgp3 protein, Chlamydia

Identifiers

PMID29790947
PMCPMC6376903
OpenAlexW2804008698

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.