Fig. 3.

a Platelet transfusion does not increase platelet count in patients with ITP. Median platelet counts are shown per patient group. Platelet count at t = 0 was significantly lower in patients who received platelet transfusion (p < 0.01). No significant differences were seen at 1, 2, 3, and 4 weeks. b Platelet transfusion increases platelet count in primary ITP patients without infection. Platelet transfusion leads to higher platelet counts from day 7 in patients with primary ITP without infection. Median platelet counts are shown for both groups. No significant differences were found. c Platelet transfusion does not increase platelet count in primary ITP patients with infection. In patients with primary ITP with infection, there is no effect of platelet transfusion on platelet count. Median platelet counts are shown for both groups. No significant differences were found