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Detecting Spatiotemporal Clusters Of Accidental Poisoning Mortality Among Texas Counties, U.S., 1980 – 2001, Ella T. Nkhoma, Chiehwen Ed Hsu Oct 2004

Detecting Spatiotemporal Clusters Of Accidental Poisoning Mortality Among Texas Counties, U.S., 1980 – 2001, Ella T. Nkhoma, Chiehwen Ed Hsu

Chiehwen Ed Hsu

BACKGROUND: Accidental poisoning is one of the leading causes of injury in the United States, second only to motor vehicle accidents. According to the Centers for Disease Control and Prevention, the rates of accidental poisoning mortality have been increasing in the past fourteen years nationally. In Texas, mortality rates from accidental poisoning have mirrored national trends, increasing linearly from 1981 to 2001. The purpose of this study was to determine if there are spatiotemporal clusters of accidental poisoning mortality among Texas counties, and if so, whether there are variations in clustering and risk according to gender and race/ethnicity. The Spatial …


Evaluating The Disparity Of Female Breast Cancer Mortality Among Racial Groups - A Spatiotemporal Analysis, Chiehwen Ed Hsu Jan 2004

Evaluating The Disparity Of Female Breast Cancer Mortality Among Racial Groups - A Spatiotemporal Analysis, Chiehwen Ed Hsu

Chiehwen Ed Hsu

Background: The literature suggests that the distribution of female breast cancer mortality demonstrates spatial concentration. There remains a lack of studies on how the mortality burden may impact racial groups across space and over time. The present study evaluated the geographic variations in breast cancer mortality in Texas females according to three predominant racial groups (non-Hispanic White, Black, and Hispanic females) over a twelve-year period. It sought to clarify whether the spatiotemporal trend might place an uneven burden on particular racial groups, and whether the excess trend has persisted into the current decade. Methods: The Spatial Scan Statistic was employed …