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?:abstract
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Background Road traffic injury (RTI) is a major cause of fatalities around the world and Thailand is the second leading country. Objective To determine the spatial pattern of road traffic injury during the 7-day Songkran holiday in Thailand. Method This study utilized the data obtained from the Information Technology for Emergency Medical System (ITEMS) covering the nationwide road traffic injury during the Songkran festival, Thai New Year holiday (April 9-15, 2015). The Moran\'s I was used to identify global autocorrelation within the country whereas the Local Indicators of Spatial Association (LISA) analysis was administered for analyzing the spatial distribution of RTIs and determining the spatial autocorrelation and correlation of numbers motor vehicles and length of road networks and road traffic injury. Result During Songkran holiday 2015, the univariate Moran\'s I of RTIs distribution among provinces in Thailand showed a slightly positive spatial autocorrelation, as the Moran\'s I was 0.1701, with statistical significance at 0.05. Local indicators of spatial association indicated seven hotspots and five cold spots. In addition, the number of motor vehicles, and length of trunk road (super highway), tertiary roads, secondary roads, and primary roads had positive spatial autocorrelation with road traffic injury, with Moran\'s I values of 0.173, 0.117, 0.219, 0.162, and 0.279, respectively. Conclusion This study demonstrates that local indicators of spatial association could detect the spatial pattern of road traffic injury. The number of motor vehicles, length of all roads served as new parameters for determining road traffic injury hotspots.
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