Evidence map›Paper›PMID 27227411›Full record

ArticlePloS one2016

Lack of Significant Effects of Chlamydia trachomatis Infection on Cervical Adenocarcinoma Risk: Nested Case-Control Study.

Vitaly Smelov, Tarik Gheit, Karin Sundström, Alexander Ploner, Sandrine McKay-Chopin, Carina Eklund, Massimo Tommasino, Joakim Dillner

Open access · goldAbstract readComparative Study
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 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 26% 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

4 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Iranian journal of public health · 2022
    Review
  3. Review
  4. Vaginal microbiomes and ovarian cancer: a review.American journal of cancer research · 2020
    Review
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

8 authors at 2 institutions in 2 countries.

Vitaly SmelovInfections and Cancer Biology Group, International Agency for Research on Cancer, World Health Organization, Lyon, France.
Tarik GheitInfections and Cancer Biology Group, International Agency for Research on Cancer, World Health Organization, Lyon, France.
Karin SundströmDepartment of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.
Alexander PlonerDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Sandrine McKay-ChopinInfections and Cancer Biology Group, International Agency for Research on Cancer, World Health Organization, Lyon, France.
Carina EklundDepartment of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.
Massimo TommasinoInfections and Cancer Biology Group, International Agency for Research on Cancer, World Health Organization, Lyon, France.
Joakim DillnerDepartment of Laboratory Medicine, Karolinska Institutet, Stockholm, Sweden.
Karolinska Institutet · SECentre International de Recherche sur le Cancer · FR

Funding

Prospective study on viral load of cervical cancerR01CA093378 · NCI · KAROLINSKA INSTITUTE · PI ADAMI, HANS-OLOV · 2002 to 2005
$1.5M
Molecular epidemiology of cervical adenocarcinomaR01CA111720 · NCI · KAROLINSKA INSTITUTE · PI ADAMI, HANS-OLOV · 2005 to 2007
$1.2M
NCI NIH HHS R01 CA093378NCI NIH HHS R01 CA111720World Health Organization 001
6 · The paper itself

Abstract

backgroundA role of Chlamydia trachomatis in HPV-induced cervical carcinogenesis has been reported for cervical cancer but studies on cervical adenocarcinoma are limited.

methodsA total of 1,553 cervical smears taken up to 26 years before diagnosis in a large population-based nested case-control study of cervical adenocarcinoma (AC, 132 cases with matched controls), and adenocarcinoma in situ (AIS, 159 cases with matched controls) were tested for C. trachomatis and HPV DNA by a type-specific PCR bead-based multiplex genotyping (TS-MPG) assay.

resultsOnly 1.7% of samples were positive for C. trachomatis, with no significant differences between AC/AIS cases and controls. HPV-positivity was detected in 49.3% of C. trachomatis-negative and 65.4% C. trachomatis-positive samples, respectively.

conclusionsA large prospective study did not find any risk for cervical adenocarcinoma and/or AIS conferred by C. trachomatis infection. IMPACT: C. trachomatis appears not to be involved in cervical adenocarcinomas.

Indexed as

AdenocarcinomaAdolescentAdultAgedAged, 80 and overCase-Control StudiesChlamydia InfectionsChlamydia trachomatisDNA, ViralFemaleGenotypeHumansMiddle AgedPapanicolaou TestPapillomaviridaePapillomavirus InfectionsDNA, Viral

Identifiers

PMID27227411
PMCPMC4881944
OpenAlexW2398681539

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.