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Figure 2 Cumulative rate of first cardiovascular event for two markers. Kaplan-Meier cumulative event rates for top-risk quartile (dashed line) versus lower three risk quartiles (solid line) are shown for fibrinogen (A) and homocysteine (B). The Q-4 is top-risk quartile for fibrinogen ( 5 g/l) and homocysteine ( 13.7 µmol/l). Value by log-rank statistic.