Neonatal Growth and Breast Cancer Risk
Author Information
Author(s): Lagiou P, Hsieh C-C, Trichopoulos D, Adami H-O, Hall P, Chie L, Ekbom A
Primary Institution: Harvard School of Public Health
Hypothesis
How does neonatal growth relate to breast cancer risk in adulthood?
Conclusion
Neonatal weight loss and growth rate after birth are significantly associated with increased breast cancer risk in women under 50 years old.
Supporting Evidence
- Immediate postnatal weight loss is linked to breast cancer risk.
- Neonatal growth rate after nadir reflects growth hormone levels.
- Women under 50 showed a significant increase in breast cancer risk related to neonatal growth patterns.
Takeaway
If babies lose too much weight after birth or grow too quickly, they might have a higher chance of getting breast cancer later in life, especially if they are younger than 50.
Methodology
A case-control study nested within a population-based cohort of women born in Sweden, analyzing neonatal growth patterns and breast cancer risk.
Potential Biases
Potential selection bias due to the exclusion of cases with missing newborn records.
Limitations
The study sample had fewer older women, which may affect the generalizability of the results.
Participant Demographics
Women born in Sweden between 1901 and 1961, with 405 breast cancer patients and 1081 matched controls.
Statistical Information
P-Value
0.048
Confidence Interval
1.00–3.25
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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