Evidence map›Paper›PMID 34941008›Full record

ArticleArthritis care & research2023

Hydroxychloroquine Use and Cardiovascular Events Among Patients With Systemic Lupus Erythematosus and Rheumatoid Arthritis.

April Jorge, Na Lu, Hyon Choi, John M Esdaile, Diane Lacaille, J Antonio Avina-Zubieta

Open access · greenAbstract read
In one paragraph

Article in Arthritis care & research, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 25 citations in OpenAlex.

  1. Pooled it
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  3. Myocardial infarction in rheumatic diseases.Rheumatology international · 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

6 authors at 2 institutions in 2 countries.

April JorgeMassachusetts General Hospital, Boston.ORCID 0000-0001-6935-880X
Na LuMassachusetts General Hospital, Boston, and Arthritis Research Canada, Richmond, British Columbia, Canada.
Hyon ChoiMassachusetts General Hospital, Boston.
John M EsdaileArthritis Research Canada and University of British Columbia, Vancouver, British Columbia, Canada.
Diane LacailleArthritis Research Canada and University of British Columbia, Vancouver, British Columbia, Canada.ORCID 0000-0002-4065-4151
J Antonio Avina-ZubietaArthritis Research Canada and University of British Columbia, Vancouver, British Columbia, Canada.ORCID 0000-0001-5526-663X
Massachusetts General Hospital · USUniversity of British Columbia · CA

Funding

The Effects of Urate Lowering Therapy on Inflammation, Endothelial function, andP50AR060772 · NIAMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SAAG, KENNETH G · 2012 to 2021
$12.8M
A Personalized, Patient-Centered Approach to Optimizing Lupus CareK23AR079040 · NIAMS · MASSACHUSETTS GENERAL HOSPITAL · PI JORGE, APRIL · 2021 to 2025
$875k
NIAMS NIH HHS K23 AR079040NIAMS NIH HHS L30 AR076110NIAMS NIH HHS P50 AR060772NIAMS NIH HHS P50-AR-060772
6 · The paper itself

Abstract

objectiveWe evaluated the potential temporal association between hydroxychloroquine (HCQ) use and cardiovascular (CV) events among patients with systemic lupus erythematosus (SLE) or rheumatoid arthritis (RA).

methodsWe conducted a nested case-control study within inception cohorts of SLE and RA patients using administrative health databases including the entire population of British Columbia, Canada. We identified cases with incident CV events, including myocardial infarction (MI), stroke, or venous thromboembolism (VTE). We matched each case with up to 3 controls on age, sex, and rheumatic disease. HCQ exposure was categorized by the time between the last HCQ prescription date covered and the index date as current use, recent use, remote use, or never used. We used conditional logistic regression to assess the association between HCQ exposure and CV events, using remote use as the reference group.

resultsWe identified 10,268 cases and 29,969 controls. Adjusted conditional odd ratios (cORs) and 95% confidence intervals (95% CIs) for current HCQ use relative to remote use were 0.86 (0.77-0.97) for combined CV events, 0.88 (0.74-1.05) for MI, 0.87 (0.74-1.03) for stroke, and 0.74 (0.59-0.94) for VTE. Recent HCQ users and nonusers had similar odds of combined CV events as remote users (cORs 0.93, 95% CI 0.77-1.13 and 0.96, 95% CI 0.88-1.04, respectively).

conclusionIn this nested case-control study of patients with SLE and RA, we found a reduced risk of overall CV events associated with current HCQ use, including reductions in VTE and trends toward reductions in MI and stroke. These findings suggest a possible cardiovascular preventative benefit of HCQ use.

Indexed as

Antirheumatic AgentsArthritis, RheumatoidLupus Erythematosus, SystemicMyocardial InfarctionStrokeVenous ThromboembolismBritish ColumbiaCase-Control StudiesHumansHydroxychloroquineAntirheumatic AgentsHydroxychloroquine

Identifiers

PMID34941008
PMCPMC9218009
OpenAlexW4200487071

What OpenQuestion holds

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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.