Health Service Areas (HSA) Last updated: April 11, 2008
- About Health Service Areas
- Using Health Service Areas with SEER*Stat
- Names of Health Service Areas
- Download Health Service Areas Spreadsheet
Health Service Areas (HSAs) were originally defined by the National Center for Health Statistics, part of the Centers for Disease Control and Prevention, to be a single county or cluster of contiguous counties which are relatively self-contained with respect to hospital care. For further information about their initial use, please visit the Atlas of United State Mortality.
The following variables are available in SEER*Stat for use with Health Service Areas.
Health Service Area (NCI Modified)
This variable was derived from the original Health Service Area definitions. It was modified so that any HSAs that crossed state or SEER Registry boundaries were split so that all counties from one HSA were in one state and/or SEER Registry.
Health Service Area
This variable was derived from the original Health Service Area definitions.
The names of the Health Service Areas are derived from the names of the 2 counties with the highest populations in 2000 within the HSA. Additionally, if there is a major city in one of the counties that name will be added in parenthesis.
For example, the Health Service Area around Pittsburgh, Pennsylvania is named: "Alleghany (Pittsburgh), PA - Westmoreland, PA". Alleghany and Westmoreland counties have the highest population in this HSA and Pittsburgh is in Alleghany County.