AN EPIDEMIOLOGIC STUDY OF HOMICIDES IN ALLEGHENY COUNTY, PENNSYLVANIA

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Abstract
Costantino, J. P. (Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA 15261), L. H. Kuller, J. A. Perper and R. H. Cypess. An epidemiotoglc study of homicides in Allegheny County, Pennsylvania. Am J Epidemiol 106:314–324, 1977. Extensive demographic data concerning homicide victims and perpetrators in Allegheny County, 1966–1974, were obtained retrospectively from the records of the County Coroner's Office and Police Department. Analysis revealed that the demographic characteristics describing perpetrators and victims were essentially identical. Rates of homicide peaked in the young adult years of life. The race ratio (B/W) among victims was 18.7 for males and 6.7 for females, while sex ratio (M/F) was 5.4 for blacks and 1.9 for whites. An inverse relationship between the rate of homicide and socioeconomic status was present among both black and white races. The majority of victims were killed by a spouse, relative, or friend (66%), usually in familiar locations, i.e., residence or place of work (60%), and usually during an altercation (68%). Shooting was the method used to perpetrate 61 % of the killings, most of which were by means of a handgun. An increasing trend of homicide was noted, particularly for the type perpetrated by shooting.

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