. Author manuscript; available in PMC: 2010 Jan 14.

Published in final edited form as: JAMA. 2009 Jan 14;301(2):183–190. doi: 10.1001/jama.2008.976

Table 1.

Inmate Drug Use, Abuse/Dependence, and Treatment

	No. (%)
	Drug Use		Drug Abuse or Dependence
Inmate Type	At Time of Offense	In Month Prior to Offense	Met Criteria	Received Treatment While Incarcerated
Local jail inmates^a,^b	128 030 (29)	242 720 (55)	245 830 (55)	16 520 (7)

State inmates^c	393 610 (32)	686 670 (56)	642 500 (53)	95 090 (15)

Federal inmates^c	34 140 (26)	64 910 (50)	57 200 (46)	9950 (17)

Convicted jail inmates only. If all jail inmates are included, 50% were under the influence of drugs at the time of the offense, and about two-thirds were regular users.

Weighted estimates derived from the US Bureau of Justice Statistics Survey of Inmates in Local Jails, 2002.³ A stratified sample of 6982 inmates were interviewed (9.9% refusal rate) in 417 jails (of 465 selected). Survey methodology is described in Karberg and James.³

Weighted estimates derived from the US Bureau of Justice Statistics Survey of Inmates in State and Federal Correctional Facilities, 2004.⁴ In the state prison sample, a total of 14 499 inmates were interviewed (10.2% refusal rate) in 287 state prisons (of 301 selected). In the federal prison sample, a total of 3686 inmates were interviewed (13.3% refusal rate) in 39 federal prisons (of 40 selected). Survey methodology is described in Mumola and Karberg.⁴