Compared to what? Estimating the relative concentration of crime at places using systematic and other reviews

Crime Science

Table 3 Comparison of Gini coefficients for studies using police data and those using survey data

	Including non-crime cases			Excluding non-crime cases
Studies using…	Studies reviewed	Data points analyzed	Gini	Studies reviewed	Data points analyzed	Gini
Police data of reported crime^a	5	83	.83	7	83	.47
Victimization survey data^b	12	196	.87	12	186	.33
Absolute difference in Gini coefficients			.04			.14

Data points are ordered pairs of numbers, where the first number is a percent of the places or people studied and the second number is the percent of crime involved with these places or people. For example, 15, 70 would indicate that 15% of the places examined had 70% of the crime found in the study, or that 15% of the people surveyed had 70% of the victimizations detected in the study. This is described in Lee et al. (2017) and in O et al. (2017)
^aFor sources and methods, Lee et al. (2017)
^bFor sources and methods, O et al. (2017)

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