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Classifying systemic lupus erythematosus using laboratory items alone: a preliminary study.
- Source :
- Clinical Rheumatology; Mar2024, Vol. 43 Issue 3, p1037-1043, 7p
- Publication Year :
- 2024
-
Abstract
- Objectives: To explore the performance of laboratory items alone in systemic lupus erythematosus (SLE) classification. Methods: Our cohort consisted of 352 and 385 (control) patients with and without SLE. This study evaluated the performance of the American College of Rheumatology (ACR)-1997, Systemic Lupus International Collaborating Clinics (SLICC)-2012, European League Against Rheumatism (EULAR)/ACR-2019, and Systemic Lupus Erythematosus Risk Probability Index (SLERPI) using laboratory items alone, including blood and urine test results. Results: The median ratio of laboratory items/total items was 66.7%, 75.0%, 60.4%, and 77.4% in ACR-1997, SLICC-2012, EULAR/ACR-2019, and SLERPI, respectively. After including laboratory items alone, the sensitivity of ACR-1997, SLICC-2012, EULAR/ACR-2019, and SLERPI was 31.3% (95% confidence interval [CI]: 26.4%–36.4%), 79.8% (95% CI: 75.3%–83.9%), 75.9% (95% CI: 71.0%–80.2%), and 85.2% (95% CI: 81.1%–88.8%), respectively. We referenced the SLERPI and removed the additional restrictions, i.e., SLICC-2012 criteria only needs to fulfill at least four items (mSLICC-2012) and EULAR/ACR-2019 criteria needs to have ≥ 10 points (mEULAR/ACR-2019) to qualify for SLE classification. The mSLICC-2012 and mEULAR/ACR-2019 criteria, including laboratory items alone, newly identified 13 and 25 patients, respectively. Based on laboratory items alone, the combination of mSLICC-2012, mEULAR/ACR-2019, and SLERPI identified 348 patients with an improved sensitivity of 90.6% (95% CI: 87.1%–93.5%). Patients, who were classified according to the mEULAR/ACR-2019 criteria, all met the other criteria. Conclusion: Incorporating laboratory items alone was clinically feasible to help identify SLE. SLERPI and SLICC-2012, using laboratory items alone, were more worthwhile to promote in the clinic compared with EULAR/ACR-2019. Key Points • Laboratory items play a crucial role in the SLE classification criteria, and incorporating laboratory items alone was clinically feasible to help in the identification of SLE. • The SLERPI and SLICC-2012, using laboratory items alone, were more worthwhile to promote in the clinic compared with EULAR/ACR-2019, and the combination of the two could further improve the sensitivity. • The relative simplicity of evaluating laboratory indices may help nonrheumatologists and inexperienced rheumatologists to identify SLE more quickly, thereby reducing the risk of delayed diagnosis in patients. [ABSTRACT FROM AUTHOR]
- Subjects :
- SYSTEMIC lupus erythematosus
BLOOD testing
DELAYED diagnosis
URINALYSIS
Subjects
Details
- Language :
- English
- ISSN :
- 07703198
- Volume :
- 43
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Clinical Rheumatology
- Publication Type :
- Academic Journal
- Accession number :
- 175530407
- Full Text :
- https://doi.org/10.1007/s10067-024-06893-9