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History of Infertility and Risk of Colorectal Cancer
Leslie V Farland1,2,3, Kimberly E Lind4, Denise J Roe1,3
1Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, Arizona.
Summary
Infertility was not linked to colorectal cancer risk in postmenopausal women. This study found no increased risk for colorectal cancer or related mortality among women experiencing infertility.
Area of Science:
- Reproductive Health
- Oncology
- Epidemiology
Background:
- Limited research exists on the connection between infertility and colorectal cancer risk.
- Understanding potential links is crucial for comprehensive women's health.
- Investigating risk factors for colorectal cancer is an ongoing public health priority.
Purpose of the Study:
- To investigate the association between self-reported infertility and the risk of developing colorectal cancer in postmenopausal women.
- To determine if infertility influences the risk of invasive colorectal cancer or colorectal cancer mortality.
Main Methods:
- Utilized data from the Women's Health Initiative cohort, focusing on postmenopausal women.
- Defined infertility as 12 months of attempting to conceive without success.
- Employed Cox proportional hazard models to analyze the relationship between infertility and colorectal cancer outcomes.
Main Results:
- No statistically significant association was found between infertility and the risk of postmenopausal colorectal cancer (RR, 0.97; 95% CI, 0.87-1.08).
- Infertility did not correlate with an increased risk of invasive colorectal cancer (RR, 0.99; 95% CI, 0.88-1.10).
- No association was observed between infertility and colorectal cancer mortality (RR, 0.89; 95% CI, 0.71-1.12).
Conclusions:
- Infertility is not associated with an increased risk of colorectal cancer among postmenopausal women.
- The risk of colorectal cancer did not differ based on specific infertility diagnoses.
- Findings suggest infertility is unlikely to be a risk factor for colorectal cancer in this population.
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