Table 5.

Using breast cancer incidence and mortality for different age groups and corresponding observed breast cancer mortality rate (M_o) for 2006 [from the National Program of Cancer Registries (Ref. ²¹)], the table shows estimated cancer mortality rate (M_t) calculated using Eq. 1.5 and the corresponding total mortality that would be observed in the absence of screening mammography. All numbers are cumulative to age 80 for 100 000 females.

Age range	Breast cancer incidence	Breast cancer mortality (observed) with screening	Mo	Mt	Estimated breast cancer mortality w∕o screening
0–80	12 520	2427	0.194	—	—
40–50	1 494	185	0.124	0.140	209
50–60	2 444	406	0.166	0.186	455
60–80	7 643	1773	0.232	0.307	2346