Cardiorespiratory fitness and BMI measured in youth and 5-year mortality after site-specific cancer diagnoses in men-A population-based cohort study with register linkage.

We report dose-dependent associations between CRF and BMI in youth and mortality after site-specific cancer diagnoses in men. The associations with mortality could be due to both cancer inhibition and an improved tolerance to withstand cancer treatment. These results strengthen the incentive for public health efforts aimed at establishing a high CRF and normal weight in youth.