Objective To determine of spatial distributions of knife violence in Urmia, Iran, from 20 March 2009 to 21 March 2010.
Material and Methods In this cross-sectional study, we studied the data of 703 new knife-assault victims, who attended to Accident and Emergency departments of three general Hospitals of Urmia, capital of West Azerbaijan province, during a 1-year period. The “Average Nearest Neighbor” method was used to identify the statistically significant geographical clusters. χ2 test was used for statistical analysis.
Results Countryside areas and shopping centers had significantly the most extensive spatial clusters of knife violence (p<0.001). In summer season, there was different pattern in the clusters of the knife assaults in parks and recreation centers at hours of 19:00 to 3:00, which these data were added to the clusters of the other seasons. Considering space-time and socio-demographic status, teenagers and young single males were commonly as the victims of knife assaults in mentioned areas (p=0.04).
Conclusion There is sufficient evidence about existence of knife stabbing violence clusters in Urmia. Understanding that, which areas of city have the high rates of the crime occurrence, provides potentially a unique opportunity for regional planners and policy makers by GIS (Geographic Information System)/GPS (Global Positioning System).
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