Cancer Facts & Figures 2008 Caution: It is very important to
note the information below. 1) Beginning with Cancer Facts &
Figures 2007, estimated new cancer cases were computed using a
new, more accurate method developed by researchers at the
National Cancer Institute and the American Cancer Society.
Improvements in the new model include use of data from a much
larger percentage of the US population, allowance for
geographical variation in cancer incidence, adjustment for
delays in reporting, and the inclusion of many socio-
demographic, medical facility, lifestyle, and cancer screening
behavior variables. Comparisons of estimates produced by the old
and new methods were generally similar for all cancers combined
but differ substantially for some sites. For more information,
see: A New Method of Estimating US Incidence; Projected and
Observed Cancer Cases for 2003, New Method; Estimated New Cancer
Cases for Selected Cancer Sites by State, US, 2007, Old Method.
2) Beginning with Cancer Facts & Figures 2003, the