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An Ecosystem of Health Disparities and Minority Health Resources

Joinpoint Trends - Differences

The trends in reported rates for selected racial groups for specified time periods are summarized by the annual percent changes associated with each line segment obtained from fitting a joinpoint regression model to cancer rates for a time period in question. HDPulse uses the Joinpoint Regression Program (Version Web Site Policy.

Recent trends on this site are average annual percent changes (AAPCs) representing the most recent 5 years of data. The entire joinpoint regression line is used to help compute the AAPC. As a result of the differences in the time periods used to fit the models, the AAPCs estimated using the shorter series will be subject to more variability than the ones using the longer series. Although the AAPC from two series estimated using different time periods are not technically comparable, these results can be useful to provide an approximate summary of the trends for practical purposes.

To learn more about fitting trends using joinpoint models see To learn more about computing AAPCs see

There are two main types of trends on the HDPulse site.

Historical Trends, available on the Historical Trends Graph:

Recent Trends, available in numerous places:

Mortality Data

  • The following counties do not use 2000-2015 in their joinpoint computation for All Races (includes Hispanic/Latino), White (Non-Hispanic/Latino), Black (Non-Hispanic/Latino), Amer. Indian / AK Native (Non-Hispanic/Latino), Asian / Pacific Islander (Non-Hispanic/Latino), and Hispanic/Latino (any race):

    Using 2002-2015:
    Adams County, CO
    Boulder County, CO
    Broomfield County, CO
    Jefferson County, CO
    Weld County, CO