1. Bidirectional association between systemic lupus erythematosus and macrophage activation syndrome: a nationwide population-based study
- Author
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Yen-Ju Chen, Kuo-Tung Tang, Lu-Wei Huang, Der-Yuan Chen, James Cheng-Chung Wei, Tai-Ming Ko, and Hsin-Hua Chen
- Subjects
Adult ,Male ,0301 basic medicine ,medicine.medical_specialty ,Adolescent ,Population ,Taiwan ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Rheumatology ,Risk Factors ,Statistical significance ,Internal medicine ,Humans ,Lupus Erythematosus, Systemic ,Medicine ,Pharmacology (medical) ,education ,Aged ,030203 arthritis & rheumatology ,education.field_of_study ,business.industry ,Macrophage Activation Syndrome ,Hazard ratio ,Confounding ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,030104 developmental biology ,Macrophage activation syndrome ,Propensity score matching ,Female ,business - Abstract
Objectives To determine the bidirectional relationship between macrophage activation syndrome (MAS) and SLE. Methods Using the 1997–2013 Taiwan National Health Insurance Research Database, we identified patients with newly diagnosed SLE from 2001 to 2013 and selected individuals without SLE from a 1 million representative population. Propensity score (PS) matching was performed to balance incident SLE patients and individuals without SLE according to age, sex, comorbidities and medical utilization. The association between a history of MAS and SLE was studied using conditional logistic regression analysis shown as an adjusted odds ratio (aOR). The risk of MAS associated with SLE was analysed using Cox proportional regression analysis, shown as an adjusted hazard ratio (aHR), and we conducted a sensitivity analysis using various definitions of MAS. Results We included 10 481 SLE patients and 20 962 PS-matched (1:2) non-SLE individuals. The correlation between a history of MAS and SLE did not reach statistical significance after adjustment for potential confounders [aOR 1.18 (95% CI, 0.80, 1.75)] in the age-/sex-matched populations. In the 1:2 PS-matched populations, the risk of MAS markedly increased in patients with SLE [aHR 7.18 (95% CI 4.97, 10.36)]. Other risk factors for MAS included female gender, age ≥65 years, low income, a history of inflammatory bowel disease and a history of MAS. Conclusion This nationwide, population-based study revealed that a history of MAS was not significantly associated with SLE risk. However, the risk of MAS was markedly associated with SLE and a history of MAS.
- Published
- 2021