mmpc - National Indian Health Board

Methods
each recipient type across IHS Areas we calculated for each recipient type the difference between
the adjusted mean payment for IHS AIAN and a comparison group in each IHS Area as a percent of
the mean payment for IHS AIAN (Attachment Tables L.1, L.4). We then multiplied the relative
percent difference in the payment times the number of the IHS AIAN in that IHS Area, and
determined the weighted difference for the recipient type across the IHS Areas for the comparison
group (Attachment Tables L.2, L.5).
To obtain an overall measure for each IHS Area across the 6 analyses of all types of recipients, we
repeated the method using the same differences between the adjusted mean payment for IHS AIAN
and a comparison group in each IHS Area for each recipient type as the difference in percent of the
mean payment for IHS AIAN (Attachment Tables L.1, L.4). However we multiplied the relative
percent difference in the payment for each recipient type times the number of the IHS AIAN in that
recipient type, and determined the weighted difference for each IHS Area across all the recipient
types represented in that Area (Attachment Tables L.3, L.6).
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