Early life events and later risk of colorectal cancer: age-period-cohort modelling in the Nordic countries and Estonia.

Abstract. Background: A lowering of colorectal cancer risk for the birth cohorts born around World War II (WWII) has previously been observed in Norway, a country which suffered some 20% caloric restriction during the war. The purpose of the study was to conduct a similar kind of analysis in the other Nordic countries and Estonia, which were also subjected to various degrees of energy restriction during WWII. [ABSTRACT FROM AUTHOR]