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Figure 2 Distribution and change of serum cholesterol (mmol/l) according to baseline cholesterol during the follow-up. The analysis was restricted to the survivors who reported their cholesterol value in 2000 (n = 1,292). Among them serum cholesterol was available at baseline (n = 1,292), in 1974 (n = 984), and in 1985 (n = 696). At all time points the differences between the baseline cholesterol groups were highly significant (p < 0.0001).