source: main/adopters/nm/trunk/src/main/webapps/nmibis-content/xml/secure/query/module/tribalbirth/overview/Tribal.xml @ 25253

<?xml version="1.0" encoding="ISO-8859-1"?>

<OVERVIEW>
        <TITLE>New Mexico Tribal Area Queries</TITLE>
        <TEXT>
                Birth counts for a given New Mexico Tribal Area were derived by a process called
                "geocoding" that assigned latitude and longitude coordinates to the decedent's 
                residential address. These records were then assigned to tribal boundaries, as defined 
                by the US Census.  These boundaries are called "Tribal Areas" by the US Census.  
                The accuracy and precision of the geocoding process depended on having a complete 
                and correct address on the death certificate so that it could be matched uniquely to a
                standardized address in a geodatabase that provided the needed geographic coordinates. 
                Death records such as P.O boxes or rural routes that could not be matched to a 
                standardized address were geocoded with the most precise alternate geocode available. 
                Often this was the geocode of a nearby intersection, or the geographic centroid of the 
                ZIP code or county referenced in the address. For this reason self identified tribal 
                affiliation was used as a secondary criteria for the assignment of records in ZIP codes 
                that intersect with tribal boundaries.  Tribal IBIS queries allow the user to query 
                these records by self reported tribal affiliation and race/ethnicity within a tribal area.
                This process improves the quality of tribe-specific data within New Mexico and the 
                assessment of tribal communities.   
        </TEXT>
        <TEXT>
                For more information this analysis in New Mexico see the New Mexico Department of 
                Health Tribal Area Methodology IBIS page, located at: 
                https://ibis.doh.nm.gov/resources/TribalAreaMethods.html. 
        </TEXT>

</OVERVIEW>