PC, PS, and AT in meningococcemia.

This diagram represents PC, AT, and PS values obtained at the time of diagnosis in patients with meningococcemia who developed multiorgan failure and purpura fulminans (group I) and patients who did not develop multiorgan failure and purpura fulminans (group II). PC was significantly lower than AT and PS in patients within group I and group II (P < .001 and P < .001, respectively). In addition, PC and AT levels were significantly lower in group I than group II (P < .001 and P < .001, respectively). Statistical analysis was performed using a Mann-Whitney test.