Jump Model and Comparability Ratio Model
The Jump Model / Comparability Ratio Model in the Joinpoint software provides a direct estimation of trend data (e.g. cancer rates) where there is a coding or other type of scale change, which causes a "jump" in the rates, but is assumed not to affect the underlying trend.
- Overview of the Jump and Comparability Ratio Models
- Example of US Melanoma U.S. Mortality Trends found in NCI's Cancer Statistics Review run under the Standard Joinpoint Model, Jump Model and Comparability Model