Figure 1

Incidence of non-Hodgkin's lymphoma per 100,000 person-years by age and birth cohort (age group 20-89 years, 1980-2005, Doubs region, France). Top left: Age on the x-axis; the rates corresponding to the same period are connected by lines. Top right: Age on the x-axis; the rates corresponding to the same cohorts are connected by lines. Bottom left: Period on the x-axis; the rates corresponding to the same age groups are connected by lines. Bottom right: Cohort on the x-axis; the rates corresponding to the same age groups are connected by lines.