Figure 1.

Kaplan-Meier survival graph with respect to the leukocyte groupings. Patients who developed a leukocytosis which never returned to normal had the lowest probability of survival (65% survival rate at 21 days). Group 1 = (green dashed line) Ever Leukocytosis = 1; Back to Normal = 1; 80% 21 day survival, Group 2 = (red dashed line) Ever Leukocytosis = 1; Back to Normal = 0; 65% 21 day survival, Group 3 = (blue dashed line) Ever Leukocytosis = 0; Back to Normal = 0; 77% 21 day survival.

Heffernan et al. Critical Care 2012 16:R12   doi:10.1186/cc11157
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