Cited by 131Systemic Lupus Erythematosus ResearchVasculitis and related conditionsBlood Coagulation and Thrombosis Mechanisms

Diagnosis of antiphospholipid syndrome in routine clinical practice

Open access
Gardiner, C, Hills, J, Machin, SJ, Cohen, H·2013·Lupus

Abstract

The updated international consensus criteria for definite antiphospholipid syndrome (APS) are useful for scientific clinical studies. However, there remains a need for diagnostic criteria for routine clinical use. We audited the results of routine antiphospholipid antibodies (aPLs) in a cohort of 193 consecutive patients with aPL positivity-based testing for lupus anticoagulant (LA), IgG and IgM anticardiolipin (aCL) and anti-ß(2)glycoprotein-1 antibodies (aß(2)GPI). Medium/high-titre aCL/aβ(2)GPI was defined as >99th percentile. Low-titre aCL/aβ(2)GPI positivity (>95(th )< 99(th) percentile) was considered positive for obstetric but not for thrombotic APS. One hundred of the 145 patients fulfilled both clinical and laboratory criteria for definite APS. Twenty-six women with purely obstetric APS had persistent low-titre aCL and/or aβ(2)GPI. With the inclusion of these patients, 126 of the 145 patients were considered to have APS. Sixty-seven out of 126 patients were LA-negative, of whom 12 had aCL only, 37 had aβ(2)GPI only and 18 positive were for both. The omission of aCL or aβ(2)GPI testing from investigation of APS would have led to a failure to diagnose APS in 9.5% and 29.4% of patients, respectively. Our data suggest that LA, aCL and aβ(2)GPI testing are all required for the accurate diagnosis of APS and that low-titre antibodies should be included in the diagnosis of obstetric APS.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1177/0961203312460722

Cites

42 of 42 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

1 of the 43 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Gardiner, C., Hills, J., Machin, S., & Cohen, H.
Affiliations
  • University College London Hospitals NHS Foundation Trust (GB)
  • Department of Haematology, University College London Hospitals NHS Foundation Trust, London
Corresponding author
Gardiner, C
Venue
Lupus
Published
2012-09-17
Volume
22
Issue
1
Pages
18-25
ISSN
  • 0961-2033 (ISSN-L)
  • 1477-0962
OpenAlex
W2098834735
Cited by
131
References
43
Citations by year
2026: 2 · 2025: 5 · 2024: 10 · 2023: 7 · 2022: 13 · 2021: 14 · 2020: 16 · 2019: 14 · 2018: 13 · 2017: 8 · 2016: 6 · 2015: 7 · 2014: 13 · 2013: 3
FWCI
5.64
Type
journal article
Language
en
Open access
Locations
  • Lupus (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Wellcome Trust (GR087730)
Topics
  • Health Sciences › Medicine › Rheumatology › Systemic Lupus Erythematosus Research
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Vasculitis and related conditions
  • Health Sciences › Medicine › Hematology › Blood Coagulation and Thrombosis Mechanisms
Keywords
antiphospholipid syndrome, antiphospholipid antibodies, lupus anticoagulant, anticardiolipin antibodies, anti-beta2-glycoprotein I antibodies, obstetric antiphospholipid syndrome, thrombotic antiphospholipid syndrome, diagnostic criteria, International Consensus Criteria, diagnostic accuracy
MeSH terms
Female, Humans, Male, Predictive Value of Tests, Pregnancy, Pregnancy Complications, Retrospective Studies, Thrombosis, Biomarkers, Linear Models, Lupus Coagulation Inhibitor, Antiphospholipid Syndrome, Antibodies, Anticardiolipin, beta 2-Glycoprotein I

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review