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. 1999 Jul;80(9):1459–1460. doi: 10.1038/sj.bjc.6690544

Inverse association between breast cancer incidence and degree of visual impairment in Finland

P K Verkasalo 1,2, E Pukkala 3, R G Stevens 4, M Ojamo 5, S-L Rudanko 5
PMCID: PMC2363081  PMID: 10424751

Abstract

A total of 10 935 women with visual impairment were identified from the Finnish Register of Visual Impairment and followed up for cancer through the Finnish Cancer Registry for years 1983–1996. Breast cancer risk decreased by degree of visual impairment (P for trend 0.04) which suggests a dose–response relationship between visible light and breast cancer risk. © 1999 Cancer Research Campaign

Keywords: blindness, breast neoplasms, epidemiology, medical record linkage, melatonin, vision disorders

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Selected References

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