Table 5.7a Heroin admissions by selected usual route of administration, according to age group and characteristics of first treatment episode: TEDS 1997-2007 Number
[Based on administrative data reported to TEDS by all reporting States and jurisdictions. See Table 4.2a.]
Usual route of administration, age group, and characteristics of first treatment episode¹	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007
Total heroin admissions	235,143	247,069	257,508	270,375	277,653	286,157	273,996	261,610	259,462	264,599	246,871
Injection
Age group	146,558	148,992	156,380	158,045	158,120	163,415	154,326	150,928	161,610	165,345	157,031
Under 20 years	3,576	4,636	4,681	4,816	4,703	4,760	4,533	4,687	5,234	4,920	4,493
20 to 29 years	29,256	32,255	35,806	37,959	41,998	45,638	45,517	48,027	53,716	57,610	57,095
30 to 39 years	54,515	51,676	51,816	50,213	48,580	47,628	43,311	40,588	43,082	42,994	39,976
40 years and over	59,211	60,425	64,077	65,057	62,839	65,389	60,965	57,626	59,578	59,821	55,467
First treatment episode (%)	18.3	18.7	19.5	19.9	19.4	20.4	19.9	19.4	23.3	23.7	21.3
Avg. years of use for clients in 1st treatment episode	14 yrs	14 yrs	14 yrs	13 yrs	13 yrs	12 yrs	13 yrs	13 yrs	13 yrs	14 yrs	13 yrs
Inhalation
Age group	63,910	69,324	71,091	80,637	87,060	88,262	87,203	80,032	85,117	87,263	78,518
Under 20 years	2,359	2,581	2,523	2,289	2,194	2,149	2,059	1,769	1,994	1,849	1,544
20 to 29 years	18,233	18,442	17,661	18,174	18,357	17,589	16,141	15,138	16,345	15,938	14,040
30 to 39 years	27,292	28,949	30,088	34,185	36,398	35,241	33,004	28,208	27,847	25,783	21,650
40 years and over	16,026	19,352	20,819	25,989	30,111	33,283	35,999	34,917	38,931	43,693	41,284
First treatment episode (%)	27.8	25.7	24.4	25.8	26.0	25.7	25.0	25.4	28.8	28.7	24.1
Avg. years of use for clients in 1st treatment episode	9 yrs	10 yrs	10 yrs	11 yrs	12 yrs	12 yrs	13 yrs	13 yrs	13 yrs	14 yrs	15 yrs
Smoking
Age group	5,963	6,129	7,077	7,180	6,592	6,516	6,355	5,685	5,624	5,576	5,713
Under 20 years	366	412	543	494	371	331	338	308	352	396	434
20 to 29 years	1,852	2,007	2,466	2,314	2,031	2,078	1,994	1,781	1,956	2,232	2,473
30 to 39 years	2,205	2,142	2,297	2,358	2,053	2,056	1,908	1,683	1,450	1,244	1,268
40 years and over	1,540	1,568	1,771	2,014	2,137	2,051	2,115	1,913	1,866	1,704	1,538
First treatment episode (%)	29.5	28.5	29.1	29.9	31.6	32.8	31.9	31.4	37.5	39.1	41.1
Avg. years of use for clients in 1st treatment episode	8 yrs	8 yrs	8 yrs	11 yrs	11 yrs	11 yrs	12 yrs	11 yrs	11 yrs	9 yrs	9 yrs
¹ Usual route of administration and/or age group were not reported for all admissions.
SOURCE: Office of Applied Studies, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS). Data received through 10.6.08.