Evidence map›Paper›PMID 15640269›Full record

ArticleAnnals of the rheumatic diseases2005

Antibodies to citrullinated human fibrinogen (ACF) have diagnostic and prognostic value in early arthritis.

M M J Nielen, A R van der Horst, D van Schaardenburg, I E van der Horst-Bruinsma, R J van de Stadt, L Aarden, B A C Dijkmans, D Hamann

Open access · bronzeAbstract read
In one paragraph

Article in Annals of the rheumatic diseases, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 2 pooled it
10.0field-weighted citation impact, top 1% 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

55 citing papers in PubMed, 2 syntheses or guidelines pooled it, 185 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Trial
  4. Trial
  5. Article
  6. Article
  7. Differential roles of human CD4Nature immunology · 2025
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  8. Review
  9. Article
  10. Article
  11. Review
  12. Review
  13. Review
  14. Article
  15. Synovial Tissue Biopsy Research.Frontiers in medicine · 2019
    Review
  16. Article
  17. Synovial tissue research: a state-of-the-art review.Nature reviews. Rheumatology · 2017
    Review
  18. 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

8 authors at 2 institutions in 1 country.

M M J NielenJan van Breemen Institute, Amsterdam, Netherlands.
A R van der Horst
D van Schaardenburg
I E van der Horst-Bruinsma
R J van de Stadt
L Aarden
B A C Dijkmans
D Hamann
Amsterdam UMC Location VUmc · NLSanquin · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe anti-cyclic citrullinated peptide (CCP) test has a high sensitivity and specificity for rheumatoid arthritis, although CCP is not the physiological target of the autoantibodies. Citrullinated fibrin is abundant in inflamed synovium

objectiveTo assess the diagnostic and prognostic value of antibodies against citrullinated fibrinogen (ACF), a soluble precursor of fibrin, in comparison with IgM-rheumatoid factor (IgM-RF) and the second generation anti-CCP test.

methodsIn 379 patients with early arthritis (258 rheumatoid and 121 undifferentiated), the sensitivity, specificity, and positive predictive value of ACF, anti-CCP, and IgM-RF for diagnosing rheumatoid arthritis were calculated. Multivariate logistic regression analysis was used to assess the diagnostic and prognostic value (radiographic progression after two years) of the tests.

resultsThe sensitivities of the ACF, anti-CCP, and IgM-RF tests were 55.8%, 57.8%, and 44.6%, with specificities of 92.6%, 94.2%, and 96.7%, respectively. Approximately 30% of the IgM-RF negative patients were positive for ACF or anti-CCP or both. The ACF and anti-CCP test had a high agreement in early arthritis (kappa = 0.84). Of all baseline characteristics, the ACF test and the anti-CCP test were the best predictors for diagnosing rheumatoid arthritis at one year (odds ratio (OR) = 10.3 and 10.6, respectively) and for radiographic progression after two years (OR = 12.1 and 14.8).

conclusionsACF is as sensitive as anti-CCP and more sensitive than IgM-RF in diagnosing rheumatoid arthritis in early arthritis. The ACF test is also a good predictor of radiographic progression, with a performance similar to the anti-CCP test. The ACF test and the anti-CCP test are especially valuable in IgM-RF negative arthritis.

Indexed as

AdultAgedArthritisArthritis, RheumatoidAutoantibodiesBiomarkersCitrullineEpidemiologic MethodsFemaleFibrinogenHumansImmunoglobulin MMaleMiddle AgedPeptides, CyclicPrognosisAutoantibodiesBiomarkersCitrullinecyclic citrullinated peptideFibrinogenImmunoglobulin MPeptides, CyclicRheumatoid Factor

Identifiers

PMID15640269
PMCPMC1755615
OpenAlexW2137052550

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.