Table 1.

Descriptive statistics for Block Groups (N=270) in Baltimore, MD^*

Block Group Characteristics	Percent
Percent Completed High School	59.3
	Mean	Minimum	Maximum	STD
Total Population per Block Group, 2000 Census	878.4	139	2455	401.6
SHIELD Participants per Block Group	5.4	1	78	7.1
Rate of Assault per 1000 residents, 1996	28.3	0	308.1	29.5
Rate of Murders per 1000 residents, 1996	0.9	0	13.0	1.7
Rate of Rape per 1000 residents, 1996	2.1	0	46.5	3.6
Rate of Robbery per 1000 residents, 1996	32.7	0	875.0	59.2

^*The sample of 786 participants resided in 270 block groups.