Observational studyRheumatology international2021
Prevalence and clinical significance of antiphospholipid antibodies in patients with coronavirus disease 2019 admitted to intensive care units: a prospective observational study.
Observational study in Rheumatology international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 4 of them syntheses that pooled 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.
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.
Who cites it
17 citing papers in PubMed, 4 syntheses or guidelines pooled it, 19 citations in OpenAlex.
- Antiphospholipid antibodies in patients with COVID-19: a systematic review and meta-analysis.Journal of thrombosis and thrombolysis · 2025Pooled it
- Autoantibodies as potential prognostic factors for clinical outcomes related to COVID-19: a systematic review of inception prospective cohort studies with GRADE recommendations.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2025Pooled it
- Systematic Review of Antiphospholipid Antibodies in COVID-19 Patients: Culprits or Bystanders?Current rheumatology reports · 2021Pooled it
- Mortality and Clinical Interventions in Critically ill Patient With Coronavirus Disease 2019: A Systematic Review and Meta-Analysis.Frontiers in medicine · 2021Pooled it
- Incidence and risk factors of deep vein thrombosis in critically ill patients: a systematic review and meta-analysis.Thrombosis journal · 2026Article
- T Cell Receptor Sequences Amplified during Severe COVID-19 and Multisystem Inflammatory Syndrome in Children Mimic SARS-CoV-2, Its Bacterial Co-Infections and Host Autoantigens.International journal of molecular sciences · 2023Article
- Thrombosis and antiphospholipid antibodies in Japanese COVID-19: based on propensity score matching.Frontiers in immunology · 2023Article
- Changes in the Level of Antiphospholipid Antibodies (Anticardiolipin and Anti-β2-Glycoprotein-I) and Thromboembolic Indices in COVID-19 Patients during 3 Weeks.International journal of preventive medicine · 2023Article
- Vascular risk factors for COVID-19 ARDS: endothelium, contact-kinin system.Frontiers in medicine · 2023Review
- COVID-19 and the antiphospholipid syndrome.Autoimmunity reviews · 2022Review
- Complementary Sets of Autoantibodies Induced by SARS-CoV-2, Adenovirus and Bacterial Antigens Cross-React with Human Blood Protein Antigens in COVID-19 Coagulopathies.International journal of molecular sciences · 2022Article
- COVID-19 and antiphospholipid antibodies.Best practice & research. Clinical haematology · 2022Review
- Assessment of antiphospholipid antibodies profiles based on severity of COVID-19 pneumonia.The Pan African medical journal · 2022Article
- Autoimmune and immunoserological markers of COVID-19 pneumonia: Can they help in the assessment of disease severity.Frontiers in medicine · 2022Article
- COVID-19 coagulopathies: Human blood proteins mimic SARS-CoV-2 virus, vaccine proteins and bacterial co-infections inducing autoimmunity: Combinations of bacteria and SARS-CoV-2 synergize to induce autoantibodies targeting cardiolipin, cardiolipin-binding proteins, platelet factor 4, prothrombin, and coagulation factors.BioEssays : news and reviews in molecular, cellular and developmental biology · 2021Article
- Untangling the Intricacies of Infection, Thrombosis, Vaccination, and Antiphospholipid Antibodies for COVID-19.SN comprehensive clinical medicine · 2021Review
- Prevalence and Impact of Lupus Anticoagulant in Patients Receiving Extracorporeal Membrane Oxygenation.Clinical and applied thrombosis/hemostasis : official journal of the International Academy of Clinical and Applied Thrombosis/HemostasisArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors at 1 institution in 1 country.
Funding
Abstract
Coronavirus disease 2019 (COVID-19) increases the risk of coagulopathy. Although the presence of antiphospholipid antibodies (aPLs) has been proposed as a possible mechanism of COVID-19-induced coagulopathy, its clinical significance remains uncertain. Therefore, this study aimed to evaluate the prevalence and clinical significance of aPLs among critically ill patients with COVID-19. This prospective observational study included 60 patients with COVID-19 admitted to intensive care units (ICU). The study outcomes included prevalence of aPLs, and a primary composite outcome of all-cause mortality and arterial or venous thrombosis between antiphospholipid-positive and antiphospholipid-negative patients during their ICU stay. Multiple logistic regression was used to assess the influence of aPLs on the primary composite outcome of mortality and thrombosis. A total of 60 critically ill patients were enrolled. Among them, 57 (95%) were men, with a mean age of 52.8 ± 12.2 years, and the majority were from Asia (68%). Twenty-two patients (37%) were found be antiphospholipid-positive; 21 of them were positive for lupus anticoagulant, whereas one patient was positive for anti-β2-glycoprotein IgG/IgM. The composite outcome of mortality and thrombosis during their ICU stay did not differ between antiphospholipid-positive and antiphospholipid-negative patients (4 [18%] vs. 6 [16%], adjusted odds ratio 0.98, 95% confidence interval 0.1-6.7; p value = 0.986). The presence of aPLs does not seem to affect the outcomes of critically ill patients with COVID-19 in terms of all-cause mortality and thrombosis. Therefore, clinicians may not screen critically ill patients with COVID-19 for aPLs unless deemed clinically appropriate.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.