Gastrointestinal SLE involvement in SLE classification. Response to: ‘‘2019 European League Against Rheumatism/American College of Rheumatology classification criteria for systemic lupus erythematosus’ by Aringeret al’ by Cuiet al

Dear Sir, In their letter,1 Dr Cui and colleagues include two interesting thoughts. Primarily, they argue, illustrated by one case, that gastrointestinal (GI) involvement may be more common in systemic lupus erythematosus (SLE) than usually thought. This thought is to some degree supported by the patient survey performed within the European League Against Rheumatism (EULAR)/ American College of Rheumatology (ACR) classification criteria project, in which we noted that more than 5% of the patients reported GI symptoms at the time of their SLE diagnosis,2 even though …