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Figure 2 D-dimer (upper panel) and PAI-1 plasma levels (lower panel) (mean ± SEM) on days 1 and 10 and at 3 months in patients with unstable angina or acute myocardial infarction with (dashed bars) or without in-hospital angina (open bars) and in those from a control group. D-dimer values at the three stages were higher in patients than they were in the control group (see text). There were significant intragroup differences (*) (ANOVA) in the two subsets as well as intergroup differences (ANOVA, p < 0.029). At 10 days values were significantly higher in patients with in-hospital angina than they were in those without (p < 0.004). Plasminogen activator inhibitor, type 1 levels were also higher in patients than they were in the control group, and there were significant (*) intragroup (ANOVA) as well as intergroup differences (ANOVA, p < 0.029). The latter were mainly related to the particularly higher PAI-1 levels on day one in patients who developed in-hospital angina than in those who did not (p < 0.008). ANOVA = analysis of variance; PAI-1 = plasminogen activator inhibitor, type 1.
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