Aerobic fitness in late adolescence and the risk of cancer and cancer-associated mortality in adulthood: A prospective nationwide study of 1.2 million Swedish men

Research output: Contribution to journalArticle

Abstract

Background: The incidence of cancer has steadily risen. It is important to identify modifiable predictors in early life that may decrease cancer risks and mortality. The present study aims to investigate the relationship between aerobic fitness in adolescence and the subsequent risk of cancer and cancer-associated mortality. Methods: The study included 1 185 439 Swedish men born between 1950 and 1980 that participated in the military conscription (mean age = 18 years). The results from the aerobic fitness test (Wmax) was linked to the risk of cancer and cancer-associated mortality during a 40-years’ follow-up using Cox proportional hazards models. A co-sibling design was employed to take familial factors into account. Results: During a mean follow-up of 27 years 15 093 cases of cancer and 4900 cancer-associated mortalities were registered. Higher Wmax (per additional 1 SD) was associated with a decreased risk of cancer at 40 years of follow-up (HR 0.93; 95% CI 0.91–0.96 for cancer and HR 0.82 95% CI 0.76–0.87 for cancer-associated mortality) but not at 5 years of follow-up (HR 1.03; 95% CI 0.99–1.07; and HR 1.04; 95% CI 0.97–1.12). In the co-sibling model the protective effects of high Wmax were increased at 40 years of follow-up for cancer (HR 0.91; 95% CI 0.85–0.98) and cancer-associated mortality (HR 0.78; 95% CI 0.68–0.89). Conclusions: These findings identify in late adolescence a potentially modifiable predictor of cancer, with higher aerobic fitness associated with a decreased risk of cancer incidence and mortality later in life.

Details

Authors
Organisations
External organisations
  • Linköping University
  • Icahn School of Medicine at Mount Sinai
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Cancer and Oncology
  • Public Health, Global Health, Social Medicine and Epidemiology

Keywords

  • Aerobic fitness, Cancer, Cancer mortality, Cancer risk factors, Familial factors
Original languageEnglish
Pages (from-to)58-63
Number of pages6
JournalCancer Epidemiology
Volume59
Publication statusPublished - 2019
Publication categoryResearch
Peer-reviewedYes