Table 1. Frequency of gun violence in census block groups January 2009–July 2015.

Factor		Range	Median
Overall		0–92	5
Proportion of houses rented	≤ median	0–85	2
	> median	0–92	13
Proportion of households identifying as AA or Hisp	≤ median	0–28	2
	> median	0–92	22
Ratio of empty to occupied houses	≤ median	0–62	2
	> median	0–92	14
Ratio of females to males	≤ median	0–57	3
	> median	0–92	13

Incidents of gunshots were cumulated over the entire study period.

AA: African American

Hisp: Hispanic