Fig. 1

a Calculated cumulative incidence for colorectal cancer in the 3-year and non-Finnish series. Fin = Finnish series (blue line). Oth = non-Finnish series (green line). b Calculated cumulative incidence for extra-colonic cancer in the 3-year and non-Finnish series. Fin = Finnish series (blue line). Oth = non-Finnish series (green line). c Calculated cumulative incidence for colorectal cancer by gender in the 3-year and non-Finnish series. Fin_M = Finnish series, males (blue line). Fin_F = Finnish series, females (red line). Oth_M = non-Finnish series, males (green line). Oth_F = non-Finnish series, females (orange line)