Lifetime physical activity and risk of breast cancer
2001
Lifetime Physical Activity and Breast Cancer Risk
Sample size: 1182
publication
Evidence: low
Author Information
Author(s): Lee I-M, Cook N R, Rexrode K M, Buring J E
Primary Institution: Brigham and Women's Hospital and Harvard Medical School
Hypothesis
Does lifetime physical activity reduce the risk of breast cancer?
Conclusion
The study found no evidence that physical activity prevents breast cancer.
Supporting Evidence
- The study included 394 women with breast cancer and 788 control women.
- Odds ratios for increasing physical activity quartiles showed no significant trends.
- Physical activity at different age groups did not show a significant association with breast cancer risk.
Takeaway
The more you exercise, it doesn't seem to help you avoid getting breast cancer.
Methodology
A case-control study comparing 394 women with breast cancer to 788 control women.
Limitations
The study did not find significant trends in any age group regarding physical activity and breast cancer risk.
Participant Demographics
Women with breast cancer and control women, with a 91% response rate.
Statistical Information
P-Value
0.47
Confidence Interval
0.60–1.67
Statistical Significance
p=0.47
Digital Object Identifier (DOI)
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