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The resources listed below are provided to assist those interested in comparing data about and between New Hampshire’s regions or service areas. Understanding the similarities and differences between a number of ways communities are grouped into geographic regions or service areas is critical when analyzing health data or for similar purposes. The documents on this page show how the populations of three widely used geographic designations related to one another. Specifically, populations are compared by:

  1. Public Health Regions, which are designated by the NH Division of Public Health Services;
  2. Hospital Services Areas, which are defined in NH Administrative Rule He-Hea 1000; and
  3. Counties, which are defined by state law.

This data is being provided to support a user's ability to evaluate how valid data may or may not be when it is reported for one of these designations when the user is primarily interested in one of the other designations. For example, when the population of a Public Health Region and a Hospital Service Area are very similar, it is likely that data reported for one has a high degree of validity for the other. Conversely, when these populations are very different, the user cannot use data from a Public Health Region, for example, and assume it would be valid for a Hospital Service Area within that Region.

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New Hampshire Department of Health and Human Services
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