Table 3.7. Heroin admissions aged 12 and older with planned medication-assisted opioid therapy,¹ by usual route of administration and age group: 1999-2009 Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions. See Table 4.2a.]
Usual route of administration and age group	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009
Total heroin admissions	257,208	269,875	277,268	284,324	273,756	262,278	260,591	268,731	262,579	281,159	282,212
Total medication-assisted opioid therapy admissions	38.5	36.6	35.6	35.1	32.4	31.1	30.1	30.1	29.3	29.2	28.5
Usual route of administration
Injection	44.8	42.7	40.8	39.0	35.3	33.3	30.9	29.6	28.8	28.3	27.2
Inhalation	29.5	29.1	31.0	32.2	30.4	28.3	28.3	31.1	29.9	30.9	31.2
Smoking	49.7	47.0	39.2	39.2	37.3	38.1	35.7	33.1	34.5	31.4	31.3
Other	25.4	20.1	21.1	23.1	23.0	32.0	26.8	26.2	23.7	23.2	21.2
No. of admissions	234,868	250,645	257,476	264,297	252,019	238,830	253,019	260,826	255,920	274,485	276,176
Age group
12 to 19 years	14.7	16.1	15.5	15.1	13.8	12.0	11.1	11.3	13.4	12.4	13.8
20 to 34 years	30.8	28.8	28.7	28.1	26.0	24.8	23.6	22.9	22.7	22.4	22.4
35 to 44 years	41.9	39.3	38.0	37.1	33.8	32.2	31.4	31.1	30.4	30.8	30.8
45 years and older	52.7	50.5	48.4	47.7	44.1	43.1	42.1	43.5	41.1	41.7	40.4
No. of admissions	251,807	268,216	275,576	282,895	269,976	256,878	254,957	262,455	257,160	275,961	276,944
¹Medication-assisted opioid therapy with methadone or buprenorphine planned as part of the client's treatment.
SOURCE: Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS). Data received through 11.03.10.