Effect of time of day of recreational and household physical activity on prostate and breast cancer risk (MCC-Spain study).

ABSTRACT: Experimental evidence indicates that exercise performed at different times of the day may affect circadian rhythms and circadian disruption has been linked to breast and prostate cancer. We examined in a population-based case-control study (MCC-Spain) if the time-of-day when physical activity is done affects prostate and breast cancer risk. Lifetime recreational and household physical activity was assessed by in-person interviews. Information on time-of-day of activity (assessed approximately 3 years after the assessment of lifetime physical activity and confounders) was available for 781 breast cancer cases, 865 population female controls, 504 prostate cases and 645 population male controls from 10 Spanish regions, 2008-2013. We estimated odds ratios (ORs) and 95% confidence intervals (95

SUBMITTER: Weitzer J 

PROVIDER: S-EPMC7891656 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature