- Genitourinary cancer
-
Physical Activity and Bladder Cancer Risk: Findings of the Japan Collaborative Cohort Study
-
Hang An, Keyang Liu, Kokoro Shirai, Ryo Kawasaki, Akiko Tamakoshi, Hiroyasu Iso
-
Cancer Res Treat. 2024;56(2):616-623. Published online October 6, 2023
-
DOI: https://doi.org/10.4143/crt.2023.962
-
-
 Abstract
 PDF Supplementary Material PubReader ePub
- Purpose
The association of physical activity with the risk of bladder cancer remains inconsistent among Asian populations. We aimed to examine the association in a large Japanese cohort.
Materials and Methods
In a population-based prospective cohort study, a total of 50,374 Japanese adults aged 40-79 years without a history of cancer or cardiovascular disease who had information on physical activity from self-administrated questionnaires were used for analysis. We performed Cox proportional hazard models to estimate the hazard ratios (HRs) and 95% confidence intervals (CIs) for incident bladder cancer after adjusting for several potential confounders.
Results
During the median 17.5 years of follow-up, 153 incident bladder cancers (116 men and 37 women) were identified. After the multivariable adjustment, HRs (95% CI) of bladder cancer concerning those with recreational sports participation of 1-2 hr/wk, 3-4 hr/wk, and 5 hr/wk and more were 0.67 (0.38-1.20), 0.79 (0.36-1.74), and 0.28 (0.09-0.89), respectively (p for trend=0.017). Compared with mostly sitting at the workplace, occupational physical activity of standing and walking were associated with a lower risk of bladder cancer (HR, 0.53 [95% CI, 0.32 to 0.85]). Hours of daily walking were not associated with the risk. The lower risk of bladder cancer was more evident for recreational sports (HR, 0.33 [95% CI, 0.10 to 1.00]), and for occupational standing and walking activity at work (HR, 0.57 [95% CI, 0.33 to 0.98]) among men.
Conclusion
Recreational sports participation and occupational physical activity were inversely associated with the risk of bladder cancer among Japanese, especially in men.
-
Citations
Citations to this article as recorded by  - Physical Activity and Cancer Incidence and Mortality: Current Evidence and Biological Mechanisms
Joanna Kruk, Basil Hassan Aboul-Enein, Marta Ewelina Gołębiewska, Ewa Duchnik, Urszula Czerniak, Mariola Marchlewicz
Cancers.2025; 17(9): 1410. CrossRef
-
4,783
View
-
186
Download
-
1
Web of Science
-
1
Crossref
|
KCA
