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Spatial analysis of intentional homicides in João Pessoa, Paraíba, Brazil, 2011-2016* * Article derived from the doctoral thesis written byAndré Luiz Sá de Oliveira, entitled Intentional homicides: ‘spatial-temporal predictive modeling with simulation of risk scenarios in the municipality of João Pessoa - PB, 2011-2016', to be defended in 2019 at the Postgraduate Program on Public Health, Public Health Ph.D. Course, Aggeu Magalhães Institute/Oswaldo Cruz Foundation.

Abstract

Objective:

to describe spatial patterns of intentional homicides in João Pessoa, Paraíba, Brazil, 2011-2016.

Methods:

this was an ecological study using census tracts as units of analysis; the study used data on intentional homicides of victims living in João Pessoa obtained by cross-checking Mortality Information System SIM information with Public Security information; mortality coefficients were calculated for the whole period and its triennia and were later smoothed using the local empirical Bayesian method; spatial autocorrelation techniques were applied to the smoothed coefficients which were using Moran’s spatial statistics.

Results:

significant spatial autocorrelation was detected for the period as a whole I=0.679, p=0.01, the 1st triennium I=0.508, p=0.01, and the 2nd triennium I=0.572, p=0.01; areas of greater risk were identified distributed among the western, northwestern, southeastern, and far south zones of the city, mainly in regions with low socioeconomic conditions; census tracts with low coefficients were located in areas of medium/high socioeconomic status.

Conclusion:

homicides in João Pessoa were high in poor districts and these are priority areas for intervention.

Keywords:
Homicide; Epidemiology; Mortality; Violence; Ecological Studies

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