Patients with systemic lupus erythematosus (SLE) in Latin America differ to a certain extent from lupus patients in other parts of the world, particularly those from developed countries as reported over the last several years by the GLADEL group (Grupo Latino Americano de Estudio de Lupus or Latin American Group for the Study of Lupus). In the early 2000s, GLADEL constituted a Latin American cohort of SLE patients; in the initial publication in 2004, 1214 patients were included; since then, the group has reported on the presentation and course of the disease, paying particular attention to the impact of ethnic...