TY - JOUR T1 - Response to: ‘Correspondence on ‘Risk of systemic lupus erythematosus after immune thrombocytopenia and autoimmune haemolytic anaemia: a nationwide French study’’ by Maquet <em>et al</em> JF - Annals of the Rheumatic Diseases JO - Ann Rheum Dis SP - e97 LP - e97 DO - 10.1136/annrheumdis-2020-219582 VL - 82 IS - 4 AU - Xiao-Huan Chen AU - Fang-Xiao Zhu AU - Hsin-Hua Chen AU - James Cheng-Chung Wei Y1 - 2023/04/01 UR - http://ard.bmj.com/content/82/4/e97.abstract N2 - We thank Maquet et al 1 for their interest in our articles entitled ‘Increased risk of systemic lupus erythematosus (SLE) in patients with autoimmune haemolytic anaemia (AIHA): a nationwide population-based cohort study’2 and ‘Risk of systemic lupus erythematosus in patients with idiopathic thrombocytopenic purpura (ITP): a population-based cohort study’.3 Maquet et al 1 estimated the cumulative incidence of SLE after incident primary ITP and AIHA in France. But they found that the cumulative incidence of SLE in France was significantly lower than our previous study results.2 3 Therefore, we reassessed cumulative incidences stratified by age and sex to compare the data between Taiwan and France. Finally, our study4 showed the 1-year/5-year cumulative incidences of SLE in adult patients with primary ITP (5.0%/10.7%) and adult patients with primary AIHA (11.6%/19.5%) in Taiwan were higher than in those in French ITP and AIHA cohorts (1.0%/1.9% and 0.5%/1.0%).1 In addition, when we studied the primary AIHA cohort, we also found that the incidence of SLE was higher in patients aged &lt;18 years than in those aged 18–45 years,4 which was inconsistent with their study.1 Maquet et al 1 … ER -