Intrauterine Environments and Breast Cancer Risk
Author Information
Author(s): Park Sue Kyung, Kang Daehee, McGlynn Katherine A, Garcia-Closas Montserrat, Kim Yeonju, Yoo Keun Young, Brinton Louise A
Primary Institution: Seoul National University College of Medicine
Hypothesis
Do perinatal factors such as birth weight and maternal age affect breast cancer risk in daughters?
Conclusion
Heavier birth weights are associated with increased breast cancer risk, while maternal age and twin status show less consistent relationships.
Supporting Evidence
- Heavier birth weights were linked to a 24% increased risk of breast cancer.
- Older maternal age showed some association with increased risk, but results varied.
- Twin status was associated with a higher risk, but findings were inconsistent.
Takeaway
Babies born heavier might have a higher chance of getting breast cancer when they grow up, but being born to older moms or being a twin doesn't always mean the same.
Methodology
Meta-analysis of studies published from January 1966 to February 2007 on perinatal factors and breast cancer risk.
Potential Biases
Potential misclassification bias in self-reported perinatal factors.
Limitations
Heterogeneity across studies and reliance on crude rather than adjusted odds ratios.
Participant Demographics
Studies included various populations, primarily focusing on women.
Statistical Information
P-Value
p<0.05
Confidence Interval
95% CI 1.04 to 1.48
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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