Evidence map›Paper›PMID 40750121›Full record

Observational studyRMD open2025

The equivocal opposite effects of lower and higher body mass index at diagnosis on radiographic joint damage progression in early rheumatoid arthritis: an inception cohort study over 15 years.

Sofia Ajeganova, Kristina Forslind, Ingiäld Hafström

Abstract readObservational Study
In one paragraph

Observational study in RMD open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

3 authors.

Sofia AjeganovaDepartment of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden sofia.ajeganova@ki.se.ORCID 0000-0001-9162-9717
Kristina ForslindFaculty of Medicine, Department of Clinical Sciences Lund, Rheumatology, Lund University, Lund, Sweden.
Ingiäld HafströmDepartment of Medicine Huddinge, Karolinska Institutet, Stockholm, Sweden.ORCID 0000-0001-9151-758X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo investigate the effect of Body Mass Index (BMI) on long-term radiographic damage in an inception rheumatoid arthritis (RA) cohort.

methodsThe study population, n=1813, originated from the observational Better AntiRheumatic FarmacoTherapy cohort. X-rays of hands and feet at inclusion, 1, 2, 5, 8 and 15 years were quantified for erosion score (ES), joint space narrowing (JSN) and the sum of modified Sharp-van der Heijde total score (mTSS). Patients were grouped by baseline BMI categories, including additional cut-off BMI ≥27 kg/m

resultsInverse relationship between BMI and log-transformed mTSS was identified. In general, patients with higher BMI, compared with normal weight and/or underweight patients, had more favourable radiographic outcomes defined by annualised progression rates of mTSS, ES and JSN, less frequent rapid and clinically relevant radiographic progression, and maintained structural integrity. In contrast to consistently higher 28-joint Disease Activity Score (DAS28) levels, BMI ≥30 kg/m

conclusionsBMI is one of the determinants of radiographic progression in early RA. Lower and higher BMI have opposite effects on radiographic progression.

Indexed as

Arthritis, RheumatoidBody Mass IndexAdultAgedAntirheumatic AgentsCohort StudiesDisease ProgressionFemaleHumansMaleMiddle AgedRadiographySeverity of Illness IndexAntirheumatic AgentsArthritis, RheumatoidOutcome Assessment, Health CareRisk Factors

Identifiers

PMID40750121
PMCPMC12314950

What Socratic holds

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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 Socratic graph.