Uncovering a missing demographic in trauma registries: Epidemiology of trauma among American Indians and Alaska Natives in Washington State.

The objectives of this study were to evaluate racial misclassification in a statewide trauma registry and to describe the epidemiology of trauma among the Washington American Indian and Alaska Native (AI/AN) population. We performed probabilistic record linkage between the Washington Trauma Registry (2005Ð2009) and Northwest Tribal Registry, a dataset of known AI/AN. AI/AN patients were compared with caucasians on demographic, injury and clinical outcome factors. A multivariable model estimated odds of mortality.