Lester D
Suicide Life Threat Behav. 1985 Summer;15(2):110-6. doi: 10.1111/j.1943-278x.1985.tb00645.x.
Violence in American cities was examined by classifying each city as high versus low in its homicide rate and high versus low in its suicide rate. Four groups of cities were identified on the basis of this classification, and their characteristics were explored. Differences were found in crime rates, poverty, population density, racial composition, latitude, and longitude. The implications of the results were examined.
通过将美国各城市的凶杀率和自杀率分别划分为高与低，对美国城市中的暴力现象进行了研究。基于这一分类确定了四组城市，并对它们的特征进行了探索。研究发现这些城市在犯罪率、贫困程度、人口密度、种族构成、纬度和经度方面存在差异。同时对研究结果的影响进行了考察。
