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Figure 1 Incidence of early adverse events by tertiles of CRP, SAA and fibrinogen in patients with stable (open bars) and unstable angina (solid bars). All stable angina patients with early adverse events were in the III tertile of CRP (Mantel-Haenszel test for linear association: p = 0.005) and of SAA (Mantel-Haenszel test for linear association: p = 0.004). Among unstable angina patients, the incidence of early adverse events increased from 0% in the I tertile to 30% in the III tertile of CRP levels (Mantel-Haenszel test for linear association: p = 0.013, respectively) and from 0% in the I tertile to 27% in the III tertile of SAA (Mantel-Haenszel test for linear association: p = 0.044). Fibrinogen levels did not discriminate between stable and unstable patients with or without early adverse events (Mantel-Haenszel test for linear association: p = 0.44 in stable angina and p = 0.48 in unstable angina). The incidence of early adverse events was similar in stable and unstable angina patients in the III tertile of CRP or SAA. CRP = C-reactive protein; SAA = serum amyloid A protein.
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