Risk of breast cancer among Norwegian women with visual impairment
2001
Breast Cancer Risk in Visually Impaired Norwegian Women
Sample size: 15412
publication
Evidence: moderate
Author Information
Author(s): Kliukiene J, Tynes T, Andersen A
Primary Institution: The Cancer Registry of Norway
Hypothesis
Does visual impairment affect the risk of breast cancer among women?
Conclusion
The study suggests that visually impaired women, especially those who are totally blind, may have a lower risk of breast cancer.
Supporting Evidence
- The risk among totally blind women was found to be 0.64.
- For those who became blind before age 65, the SIR was 0.51.
- The findings support the 'melatonin hypothesis' regarding breast cancer risk.
Takeaway
This study looked at women who can't see and found that they might get breast cancer less often than those who can see.
Methodology
The study investigated breast cancer risk in a cohort of visually impaired women in Norway.
Limitations
The study had a small number of cases among totally blind women, which may limit the findings.
Participant Demographics
Norwegian women with visual impairment.
Statistical Information
Confidence Interval
95% CI = 0.21–1.49
Digital Object Identifier (DOI)
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