Antibiotics and Breast Cancer Risk
Author Information
Author(s): Sørensen H T, Skriver M V, Friis S, McLaughlin J K, Blot W J, Baron J A
Primary Institution: Aarhus University Hospital
Hypothesis
Does the use of antibiotics increase the risk of breast cancer?
Conclusion
The study found no increased risk of breast cancer associated with antibiotic use.
Supporting Evidence
- The odds ratio for breast cancer associated with more than 10 prescriptions for antibiotics was 1.00.
- Relative risks were similar for different classes of antibiotics.
- A subanalysis showed similar risk estimates after adjusting for age at first birth and parity.
Takeaway
The study looked at women with breast cancer and found that taking antibiotics didn't make them more likely to get it.
Methodology
A population-based case–control study using hospital discharge diagnoses and prescription data.
Potential Biases
Confounding factors related to antibiotic prescriptions and breast cancer risk are unlikely.
Limitations
The study had a shorter maximum latency period of 15 years compared to other studies and lacked data on certain breast cancer risk factors.
Participant Demographics
Women with a first diagnosis of breast cancer and matched controls from North Jutland County, Denmark.
Statistical Information
P-Value
1.00
Confidence Interval
95% CI 0.86–1.15
Statistical Significance
p=0.35
Digital Object Identifier (DOI)
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