Evidence map›Paper›PMID 12359046›Full record

SynthesisBMC infectious diseases2002

Association of circulating Chlamydia pneumoniae DNA with cardiovascular disease: a systematic review.

Marek Smieja, James Mahony, Astrid Petrich, Jens Boman, Max Chernesky

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in BMC infectious diseases, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
6.4field-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

19 citing papers in PubMed, 86 citations in OpenAlex.

  1. Article
  2. Is asthma an infectious disease? New evidence.Current allergy and asthma reports · 2013
    Review
  3. Review
  4. Chlamydophila pneumoniae infection and cardiovascular disease.North American journal of medical sciences · 2013
    Article
  5. Human oral, gut, and plaque microbiota in patients with atherosclerosis.Proceedings of the National Academy of Sciences of the United States of America · 2011
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Chlamydial bacteriophage: No role in acute coronary events?The Canadian journal of infectious diseases & medical microbiology = Journal canadien des maladies infectieuses et de la microbiologie medicale · 2005
    Article
  14. The failure of antibiotics to prevent heart attacks.BMJ (Clinical research ed.) · 2005
    Article
  15. Review
  16. Article
  17. Article
  18. Article
  19. 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

5 authors at 2 institutions in 2 countries.

Marek SmiejaDept of Pathology and Molecular Medicine, McMaster University, Hamilton ON, Canada. smiejam@mcmaster.ca
James Mahony
Astrid Petrich
Jens Boman
Max Chernesky
McMaster University · CAUmeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChlamydia pneumoniae antigens, nucleic acids, or intact organisms have been detected in human atheroma. However, the presence of antibody does not predict subsequent cardiovascular (CV) events. We performed a systematic review to determine whether the detection of C. pneumoniae DNA in peripheral blood mononuclear cells (PBMC) was associated with CV disease.

methodsWe sought studies of C. pneumoniae DNA detection in PBMC by polymerase chain reaction (PCR) among patients with CV disease or other clinical conditions. We pooled studies in which CV patients were compared with non-diseased controls. We analyzed differences between studies by meta-regression, to determine which epidemiological and technical characteristics were associated with higher prevalence.

resultsEighteen relevant studies were identified. In nine CV studies with control subjects, the prevalence of circulating C. pneumoniae DNA was 252 of 1763 (14.3%) CV patients and 74 of 874 (8.5%) controls, for a pooled odds ratio of 2.03 (95% CI: 1.34, 3.08, P < 0.001). Prevalence was not adjusted for CV risk factors. Current smoking status, season, and age were associated with C. pneumoniae DNA detection. High prevalence (>40%) was found in patients with cardiac, vascular, chronic respiratory, or renal disease, and in blood donors. Substantial differences between studies were identified in methods of sampling, extraction, and PCR targets.

conclusionsC. pneumoniae DNA detection was associated with CV disease in unadjusted case-control studies. However, adjustment for potentially confounding measures such as smoking or season, and standardization of laboratory methods, are needed to confirm this association.

Indexed as

Age FactorsArteriosclerosisCardiovascular DiseasesChlamydophila pneumoniaeDNA, BacterialFemaleHumansLeukocytes, MononuclearMalePrevalenceSeasonsSex FactorsSmokingStatistics as TopicDNA, Bacterial

Identifiers

PMID12359046
PMCPMC130041
OpenAlexW2119891326

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.