. Author manuscript; available in PMC: 2008 Mar 10.

Published in final edited form as: J Subst Abuse Treat. 2007 Mar 9;32(3):225–238. doi: 10.1016/j.jsat.2007.01.002

Table 3.

ADP in the criminal and juvenile justice systems: Comparison of NCJTP point prevalence estimates with other existing studies

Variable	Estimated number of offenders under correctional control (NCJTP survey)	Size of correctional population from existing studies	Percentage difference
Number of adults in prison	1,233,867	1,244,867^a	−0.09
Number of adults detained in jails	745,766	713,990^a	4.5
Number of adults on parole	908,477	675,534^b	34.5
Number of adults on probation (Mumola, 1998)	3,949,089	4,122,779^b	−4.4
Number of adults on diversion, alternative, or other supervision status	1,006,586	NA	NA
Number of youth committed to residential facilities	57,355	58,818^c 54,208^d	−2.5 5.8
Number of youth on probation/parole	542,349	NA	NA
Number of youth on other forms of supervision	20,620	NA	NA

Note. The table excludes persons under federal jurisdiction.

From Harrison and Beck (2005).

From Glaze and Palla (2005).

From the American Correctional Association (2003). The figure is adjusted for youth in community corrections facilities, diagnostic centers, and group and foster homes.

From Snyder and Sickmund (2006). The figure is adjusted for youth in diagnostic centers and group homes, and facilities with <25 youth.