Evidence map›Paper›PMID 42540147›Full record

ArticleEULAR rheumatology open2026

Risk of nonmelanoma skin cancer in patients with psoriatic arthritis and according to bDMARD treatment-a cohort study from the Nordic Arthritis Research Collaboration.

Rasmus Westermann, Bénédicte Delcoigne, René Lindholm Cordtz, Sella Aarrestad Provan, Joe Sexton, Dan Nordström, Pia Isomäki, Johan Askling, Lene Wohlfahrt Dreyer, Karin Hellgren

Abstract read
In one paragraph

Article in EULAR rheumatology open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Rasmus WestermannCenter of Rheumatic Research Aalborg (CERRA), Department of Rheumatology, Aalborg University Hospital, Aalborg University, Aalborg, Denmark.
Bénédicte DelcoigneClinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.
René Lindholm CordtzCenter of Rheumatic Research Aalborg (CERRA), Department of Rheumatology, Aalborg University Hospital, Aalborg University, Aalborg, Denmark.
Sella Aarrestad ProvanDivision of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway.
Joe SextonDivision of Rheumatology and Research, Diakonhjemmet Hospital, Oslo, Norway.
Dan NordströmDepartment of Medicine and Rheumatology, Helsinki University Central Hospital, Helsinki, Finland.
Pia IsomäkiCentre for Rheumatology, Tampere University Hospital and Faculty of Medicine and Health Technology, Tampere University, Tampere, Finland.
Johan AsklingClinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.
Lene Wohlfahrt DreyerCenter of Rheumatic Research Aalborg (CERRA), Department of Rheumatology, Aalborg University Hospital, Aalborg University, Aalborg, Denmark.
Karin HellgrenClinical Epidemiology Division, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: To investigate if psoriatic arthritis (PsA) itself and if biological disease-modifying antirheumatic drugs (bDMARDs) used in PsA are associated with increased risks of nonmelanoma skin cancer (NMSC). Methods: From nationwide health and clinical rheumatology registers in 4 Nordic countries, we identified patients with PsA who between 2010 and 2021 started a: (i) tumour necrosis factor inhibitor (TNFi), or (ii) non-TNFi bDMARD, or were (iii) b/targeted synthetic (ts)DMARD naïve. For Sweden and Denmark, we identified incident patients with PsA (2010-2021) and corresponding general population (GP) comparator subjects. Using ever-treated follow-up, incidence rates and adjusted hazards ratios (aHRs) with 95% CIs were calculated for NMSC overall, basal cell carcinoma (BCC), and squamous cell carcinoma (SCC), respectively. Results: We identified 619 NMSCs among incident patients with PsA (n = 23,553). We observed 221 NMSCs in TNFi-treated (n = 9999), 34 NMSCs in non-TNFi bDMARD-treated (n = 2200), and 433 NMSCs in b/tsDMARD-naïve (n = 19,089) PsA. The aHR of NMSC for incident PsA vs GP was 1.20 (1.11-1.31). Pooled aHRs for NMSC overall were 1.24 (1.03-1.50) with TNFi and 1.11 (0.75-1.63) with non-TNFi bDMARDs vs b/tsDMARD-naïve PsA. Corresponding aHRs of BCC were 1.21 (0.93-1.58) for TNFi and 0.85 (0.42-1.69) for non-TNFi bDMARDs, whereas aHRs for SCC were 1.46 (0.84-2.56) and 2.37 (0.95-5.90). Conclusions: Increased risks of NMSC (SCC in particular) were found in patients with PsA compared with the GP. Compared with b/tsDMARD-naïve PsA, TNFi was associated with an increased risk of NMSC overall, whereas a nonsignificantly increased risk of SCC was seen for non-TNFi bDMARDs. However, causality between bDMARD use and NMSC in PsA remains uncertain.

Identifiers

PMID42540147
PMCPMC13425213

What Socratic holds

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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.