If the Age‐adjusted Incidence Rate of Breast Cancer Among the Grandchildren

Multiple Choice

If the age‐adjusted incidence rate of breast cancer among the grandchildren of Japanese immigrants to the USA is much closer to that of American women (high
Rates) than Japanese women (low rates) what does this tell us?

A) The most important causes of breast cancer are genetic
B) The most important causes of breast cancer are environmental (i.e.not genetic)
C) Breast cancer is diagnosed more accurately in the USA
D) Dietary change is the most likely explanation for the increase in risk among migrants
E) Women who think they are at risk of breast cancer are more likely to move to the USA