More efforts needed to address motor vehicle deaths among American Indians and Alaska Natives

Jan 30, 2012

More research and programs are needed to address the elevated rate of motor vehicle-related deaths among American Indian and Alaska Native populations, according to new research from the Johns Hopkins Center for Injury Research and Policy. To better understand this racial and ethnic disparity, the authors conducted a systematic review of literature published over the past twenty years and found just seven studies describing the problem, and only seven that tested interventions. This is the first published review of the evidence on risk factors and interventions addressing this disparity, and appears in the January issue of Epidemiologic Reviews.

Despite overall declines in deaths in the U.S., deaths are highest among American Indian and Alaska Natives, with a motor vehicle death rate that is three times the rate for the Asian and Pacific Islander population—the population with the lowest rate.

"The small number of studies in the peer-reviewed literature is surprising given the enormous human and economic impact of motor vehicle-related deaths in this population," said lead study author Keshia Pollack, PhD, MPH, an assistant professor with the Johns Hopkins Center for Injury Research and Policy, part of the Bloomberg School of Public Health. "If injury disparities are going to be eliminated, support for research and programs targeting those groups disproportionately impacted needs to be made more readily available."

The study researchers identified published studies in the peer-reviewed literature by searching public health databases for articles published between January 1, 1990, and January 31, 2011. They also searched relevant websites such as those for the Indian Health Service (IHS), the CDC's Morbidity and Mortality Weekly Report and individual electronic issues of the IHS Primary Care Provider, a journal devoted to articles of interest to Indian Health Service, tribal, and urban Indian health care professional providers.

The existing literature suggests that multiple involving behavior, policy, and environmental factors are behind the , including the large numbers of American Indians and Alaskan Natives who live in rural communities, and use and availability of alcohol. Pedestrian involvement in crashes was another common theme the researchers gleaned from the literature, likely a result of road conditions in rural areas and/or reservations, which often lack traffic control devices and artificial lighting, and alcohol use. Despite the frequency of pedestrian-related deaths, the researchers were not able to identify any interventions implemented that specifically sought to improve pedestrian safety.

"Studies like this give a bird's-eye view on the problem," said Pollack. "In addition to discovering gaps in the existing research and programs, we're able to identify promising interventions worthy of replication. Priority should be given to interventions that combine multiple methods and use partnerships to change policy, the environment, and individual behavior."

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More information: "Motor Vehicle Deaths Among American Indian and Alaska Native Populations" Epidemiologic Reviews.

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