Figure 1.

Relation between bleeding (measured using the World Health Organization bleeding scale) and the platelet count in patients with hypoproliferative thrombocytopenia. The percentage of days on which patients had bleeding of grade 2 or greater is shown, along with the associated 95% confidence intervals (dashed lines), according to the morning platelet count category. (From Slichter et al.¹³ and reproduced with the permission of the Massachusetts Medical Society.)