Evidence map›Paper›PMID 33314699›Full record

ArticleArthritis & rheumatology (Hoboken, N.J.)2021

Association Between Bone Mineral Density and Autoantibodies in Patients With Rheumatoid Arthritis.

Josephine A M P Amkreutz, Emma C de Moel, Lisa Theander, Minna Willim, Lotte Heimans, Jan-Åke Nilsson, Magnus K Karlsson, Tom W J Huizinga, Kristina E Åkesson, Lennart T H Jacobsson and 3 more

Open access · hybridAbstract read
In one paragraph

Article in Arthritis & rheumatology (Hoboken, N.J.), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Risk of fracture among patients with rheumatoid arthritis according to serological status: a population-based retrospective cohort study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
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  6. Autoantibodies as prognostic markers in rheumatoid arthritis.Journal of translational autoimmunity · 2025
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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

13 authors at 2 institutions in 2 countries.

Josephine A M P AmkreutzLeiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0001-5636-9198
Emma C de MoelLeiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0002-8940-8330
Lisa TheanderLund University, Malmö, Sweden.
Minna WillimSkåne University Hospital and Lund University, Lund, Sweden.
Lotte HeimansLeiden University Medical Center, Leiden, The Netherlands.
Jan-Åke NilssonLund University, Malmö, Sweden, and Skåne University Hospital, Lund, Sweden.
Magnus K KarlssonLund University and Skåne University Hospital, Malmö, Sweden.
Tom W J HuizingaLeiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0001-7033-7520
Kristina E ÅkessonLund University and Skåne University Hospital, Malmö, Sweden.
Lennart T H JacobssonLund University, Malmö, Sweden, and Gothenburg University, Gothenburg, Sweden.
Cornelia F AllaartLeiden University Medical Center, Leiden, The Netherlands.
Carl TuressonLund University, Malmö, Sweden, and Skåne University Hospital, Lund, Sweden.ORCID 0000-0002-3805-2290
Diane van der WoudeLeiden University Medical Center, Leiden, The Netherlands.ORCID 0000-0001-8121-5879
Lund University · SELeiden University Medical Center · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveAutoantibodies, such as anti-citrullinated protein antibodies (ACPAs), have been described as inducing bone loss in rheumatoid arthritis (RA), which can also be reflected by bone mineral density (BMD). We therefore examined the association between osteoporosis and autoantibodies in two independent RA cohorts.

methodsDual x-ray absorptiometry (DXA) of the lumbar spine and left hip was performed in 408 Dutch patients with early RA during 5 years of follow-up and in 198 Swedish patients with early RA during 10 years of follow-up. The longitudinal effect of ACPAs and other autoantibodies on several BMD measures was assessed using generalized estimating equations.

resultsIn the Dutch cohort, significantly lower BMD at baseline was observed in ACPA-positive patients compared to ACPA-negative patients, with an estimated marginal mean BMD in the left hip of 0.92 g/cm

conclusionThe presence of ACPAs is associated with significantly lower BMD at baseline, but not with greater BMD loss over time in treated RA patients. These results suggest that ACPAs alone do not appear to contribute to bone loss after disease onset when disease activity is well-managed.

Indexed as

Bone DensityAbsorptiometry, PhotonAdultAgedAnti-Citrullinated Protein AntibodiesArthritis, RheumatoidAutoantibodiesBone Diseases, MetabolicDisease ProgressionFemaleHumansMaleMiddle AgedOsteoporosisProtein CarbamylationRheumatoid FactorAnti-Citrullinated Protein AntibodiesAutoantibodiesRheumatoid Factor

Identifiers

PMID33314699
PMCPMC8251600
OpenAlexW3111095973

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

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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.