Figure 1: Distribution pattern of copeptin in patients with chest pain admitted to the emergency department () according to discharge diagnosis. Our own unpublished data are shown as box plots. AMI patients were divided by delay from symptom onset. Copeptin concentrations in AMI patients presenting within 14 h from symptom onset were significantly () higher than in the remaining patients, whereas AMI patients presenting thereafter did not differ significantly. Abbreviations—AMI: acute myocardial infarction.