CA: A Cancer Journal for Clinicians, Vol 21, 13-31, Copyright
© 1971 by American Cancer Society
Cancer Statistics, 1971
Edwin Silverberg B.S.1 and
Arthur I. Holleb M.D.2
1 Project Statistician in the Epidemiology and Statistics Department of Research, American Cancer Society, New York, New York.
2 Senior Vice President for Medical Affairs and Research and Chief Medical Officer, American Cancer Society.
We have given a few examples of how the ability to draw comparisons show trends in cancer incidence mortality can be seriously hampered by gaps in information, historical inconsistency in reporting data and, at times, a lack of clarity in explaining the exact basis of a particular study.