Characteristics of studies enrolling 5 or more patients each.

Results are given as median (range), unless otherwise noted.*Abstracts only; NR: not reported; IQR: inter-quartile range.Dosage of rituximab: ?375 mg/m2/dose/week; ?750 mg/m2/dose/week; ?500 mg/m2/dose every 2 weeks; ?100 mg/dose/weekly.ΔAge or plate count at diagnosis.IVIG: intravenous immunoglobulin; anti-D: anti-D immunoglobulins; St: steroids; Cyc: cyclophosphamide; Az: azathioprine; VCR: vincristine; CSA: cyclosporine; Sp: splenectomy; Dan: danazol.HCQ: Hydroxychloroquine; MMF: mycophenolate mofetil.ES: Evans syndrome; SLE: Systemic lupus erythematosus; ALPS: Autoimmune Lymphoproliferative Syndrome.#Secondary ITP included 14 Evans syndrome, 1 Lupus-related ITP, and 4 other auto-immune diseases associated ITP.