From 2001 to 2002, researchers from the University of Michigan School of Medicine conducted a 10-year follow-up study of trends in the use of breast cancer screening in the United States and Ontario, Canada, which was begun in 1990.
- Women in the United States are more likely to get a mammogram the greater their household income, but the link between mammography screening and income does not hold for Canadian women.
- Mammography screening rates in 1998 were higher in the United States than in Canada.
- In the United States, uninsured women were less likely than insured women to have had an annual screening mammogram.
The Robert Wood Johnson Foundation (RWJF) supported this project through a grant of $49,999.