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Response to: ‘Correspondence on ‘Risk of systemic lupus erythematosus after immune thrombocytopenia and autoimmune haemolytic anaemia: a nationwide French study’’ by Maquet et al
  1. Xiao-Huan Chen1,2,
  2. James Cheng Chung Wei2,3,4,
  3. Han-You Mo2,5,
  4. Hsin-Hua Chen6,7,8,9,10
  1. 1 Department of Rheumatology, Guilin Medical University, Guilin, China
  2. 2 Institute of Medicine, College of Medicine, Chung Shan Medical University, Taichung, Taiwan
  3. 3 Department of Allergy, Immunology & Rheumatology, Chung Shan Medical University Hospital, Taichung, Taiwan
  4. 4 Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
  5. 5 Department of Rheumatology, The Affiliated Hospital of Guilin Medical University, Guilin, China
  6. 6 Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
  7. 7 Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
  8. 8 Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung, Taiwan
  9. 9 School of Medicine, National Yang-Ming University, Taipei, Taiwan
  10. 10 Institute of Biomedical Science and Rong Hsing Research Centre for Translational Medicine, Chung Hsing University, Taichung, Taiwan
  1. Correspondence to Dr Hsin-Hua Chen; shc5555{at}

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We thank Maquet et al 1 for their interest on our article entitled ‘Increased risk of systemic lupus erythematosus (SLE) in patients with autoimmune haemolytic anaemia (AIHA): a nationwide population-based cohort study’2 and the article by Zhu et al 3 entitled ‘Risk of systemic lupus erythematosus in patients with idiopathic thrombocytopenic purpura (ITP): a population-based cohort study’. The articles of us2 and Zhu et al 3 studied the Taiwanese National Health Insurance Database and reported that patients with AIHA and patients with ITP have a higher risk of SLE, while Maquet et al found inconsistent results through their research.1

Maquet et al 1 used the French nationwide adult cohorts to evaluate the risk of SLE after incident ITP or AIHA. The subjects of the study were patients who had been included between 2009 and 2017 in FAITH and between 2012 and 2017 in AHEAD. In addition, their research also reported that the cumulative incidence of SLE stratified by age and sex. The study by Maquet et al 1 showed that patients diagnosed with primary ITP/AIHA had a low risk of SLE (<2%). However, they found that childbearing age of female patients with ITP and both male and female patients with AIHA …

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  • Handling editor Josef S Smolen

  • X-HC and JCCW contributed equally.

  • Contributors H-YM and JCCW conceptualised the research and drafted the manuscripts. X-HC interpreted the data and drafted the manuscript. H-HC contributed to the research design, performed data analysis and graph generation and critically revised the manuscript. All authors have read and approved the final manuscript.

  • Funding This work was supported by funding from Chung Shan Medical University Hospital grant number CSH-2018-C-023 and the National Natural Science Foundation of China Grants (81760298).

  • Competing interests None declared.

  • Patient and public involvement Patients and/or the public were not involved in the design, or conduct, or reporting, or dissemination plans of this research.

  • Provenance and peer review Commissioned; internally peer reviewed.

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