Low oestrogen receptor alpha expression in normal breast tissue underlies low breast cancer incidence in Japan.

Lawson, J S; Field, A S; Champion, S; Tran, D; Ishikura, H; Trichopoulos, D · Lancet · 1999

cross_sectional · Level IV

Where this comes from

Abstract

Among white Australians without breast cancer, the median of the percentage of oestrogen receptor alpha positive cells was 12% for women younger than 50 years and 17% for those 50 years or older; among Japanese women who had no breast cancer and are generally at low risk for this disease, the corresponding values were both significantly lower and around 9%.

Medical subject headings