Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Example of health data available for spatial analysis. Individual data are the locations of patients diagnosed with cancer, as well as their stage at diagnosis. For confidentiality reasons these sensitive data are often aggregated, resulting in rate data computed for geographical units of varying size and shape (e.g. census tracts here)
