All 28 patients from diagnosis to last platelet count and their month-by-month treatment for their ITP from diagnosis to last known platelet count.

The x-axis represents time in months; the y-axis is composed of individual patients divided according to outcome group into which they fall: group A, “off treatment”; group B, “receiving treatment (anti-D or other)”; and group C, those undergoing “splenectomy.” The letters represent ITP treatments (explained in the key). The number at the end of each line is the last known platelet count for each patient. I indicates anti-D treatment; –, no treatment; S, splenectomy; D, danazol; G, IVIG; P, prednisone; M, IV methylprednisolone; A, azathioprine; R, rituxan; E, dexamethasone; 1, IVIG for surgery; 2, lost to follow-up; 3, prednisone for SLE (not low platelets); 4, IVIG for obstetric reasons; 5, chemotherapy for breast cancer; T, toxicity; C, chemotherapy; X, radiotherapy; and *, intermittent counts less than 30 000/uL, no treatment given.