Figure 3From: Time trends in exposure of cattle to bovine spongiform encephalopathy and cohort effect in France and Italy: value of the classical Age-Period-Cohort approachThe classical plots for observation data of the Lexis diagram in the case of BSE in France. BSE prevalence per 10,000 tested animals in the 2001-2007 period (calculated period): (a) age-specific prevalence per period of diagnosis; (b) age-specific prevalence by birth cohort.Back to article page