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A cancer incidence rate is the number of newly diagnosed cancers of a specific site/type occurring in a specified population during a year (or group of years), usually expressed as the number of cancers per 100,000 population at risk. Several statistical methods and software tools have been developed for the analysis and reporting on cancer incidence statistics. Delay Model: Cancer Incidence Rates Adjusted for Reporting DelayTimely and accurate calculation of cancer incidence rates is hampered by reporting delay, the time elapsed before a diagnosed cancer case is reported to the NCI. The idea behind modeling reporting delay is to adjust the current case count to account for anticipated future corrections (both additions and deletions) to the data. See Cancer Incidence Rates Adjusted for Reporting Delay for more information. SEER*Stat Statistical MethodsSEER*Stat is statistical software for the analysis of SEER and other cancer-related databases. The following methods associated with the reporting of basic cancer incidence statistics are added directly to SEER*Stat.
Joinpoint Trend Analysis SoftwareJoinpoint is statistical software for the analysis of trends using joinpoint models, that is, models with several
different lines that are connected at the "joinpoints." The software takes trend data (e.g., cancer rates)
and fits the simplest joinpoint model that the data allows. This enables the user to test whether an apparent change
in trend is statistically significant. See Joinpoint Regression Program for more information
and to download the software. DevCan - Probability of Developing or Dying of CancerThe DevCan software uses lifetable methods to compute the lifetime and age-conditioned probability of developing cancer and dying of cancer in the general population. Input data for the computations include cancer incidence rates. Data sets are supplied to estimate risks of developing and dying of cancer for over 20 cancer sites by race and sex. The Probability of Developing or Dying of Cancer Web site provides access to the DevCan software as well as links to published statistics and documentation of the methodology. In addition, the Cancer Query Systems: Probability of Developing or Dying from Cancer provides access to a database of pre-calculated statistics. |
Last modified: 11 Aug 2008 |
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