Fig. 1.

A) Annual rates of first-listed infectious disease (ID) hospitalisations among Alaska Native people, Alaska, and for the general US population, 2001–2009 and B) Annual proportions of first-listed and of any-listed ID hospitalisations in all hospitalisations among Alaska Native people, Alaska, 2001–2009. *First-listed ID hospitalisations are hospitalisations where the first diagnosis is an ID, any-listed ID hospitalisations are hospitalisations with an ID ICD-9-CM code listed anywhere on the discharge record. Rate per 100,000 persons of corresponding group. Rates for Alaska Native people were determined from the Indian Health Service (IHS) direct and contract health service inpatient dataset. Rates for the general US population used the Nationwide Inpatient Sample (NIS) to represent all of the US population.