Figure 1

Platelet aggregation, as determined by impedance aggregometry, in postoperative and septic patients. Shown are the aggregometry findings (area under curve (AUC) in arbitrary units (A.U.)) with the activators adenosine diphosphate (ADP), collagen (COL), arachidonic acid (AA) and thrombin receptor activating peptide 6 (TRAP). Results are given as boxplots (with median, quartiles, minimum and maximum). For the statistical evaluation the Mann-Whitney test was used.