Table 5.7a Heroin admissions by selected usual route of administration, according to age group and characteristics of first treatment episode: TEDS 1994-2004 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	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Total heroin admissions	216,452	227,989	224,366	235,143	247,069	257,508	275,825	282,991	293,191	280,432	265,895
Injection
Age group	148,956	147,424	144,986	146,558	148,992	156,380	162,531	162,234	168,119	158,691	155,071
Under 20 years	1,247	1,705	2,438	3,576	4,636	4,681	4,953	4,847	4,926	4,674	4,832
20 to 29 years	25,125	25,163	26,289	29,256	32,255	35,806	38,856	42,924	46,776	46,639	49,171
30 to 39 years	66,147	61,956	57,975	54,515	51,676	51,816	51,660	49,969	49,078	44,640	41,781
40 years and over	56,437	58,600	58,284	59,211	60,425	64,077	67,062	64,494	67,339	62,738	59,287
First treatment episode (%)	18.2	18.4	18.7	18.3	18.7	19.5	19.4	19.1	20.2	19.8	19.5
Avg. years of use for clients in 1st treatment episode	14 yrs	14 yrs	14 yrs	14 yrs	14 yrs	14 yrs	13 yrs	12 yrs	12 yrs	12 yrs	12 yrs
Inhalation
Age group	48,639	58,476	57,480	63,910	69,324	71,091	81,226	88,003	90,186	88,960	79,976
Under 20 years	1,300	1,734	1,646	2,359	2,581	2,523	2,319	2,211	2,187	2,095	1,788
20 to 29 years	17,467	19,988	17,593	18,233	18,442	17,661	18,285	18,559	17,866	16,319	15,088
30 to 39 years	20,560	24,767	24,930	27,292	28,949	30,088	34,478	36,850	36,198	33,871	28,272
40 years and over	9,312	11,987	13,311	16,026	19,352	20,819	26,144	30,383	33,935	36,675	34,828
First treatment episode (%)	31.4	33.1	29.5	27.8	25.7	24.4	25.9	26.1	26.2	25.3	25.6
Avg. years of use for clients in 1st treatment episode	9 yrs	9 yrs	9 yrs	9 yrs	10 yrs	10 yrs	11 yrs	12 yrs	12 yrs	13 yrs	13 yrs
Smoking
Age group	3,993	4,661	5,133	5,963	6,129	7,077	7,309	6,679	6,683	6,456	5,748
Under 20 years	174	258	330	366	412	543	514	382	339	342	315
20 to 29 years	1,237	1,472	1,615	1,852	2,007	2,466	2,349	2,057	2,129	2,034	1,814
30 to 39 years	1,718	1,936	1,940	2,205	2,142	2,297	2,404	2,097	2,108	1,944	1,701
40 years and over	864	995	1,248	1,540	1,568	1,771	2,042	2,143	2,107	2,136	1,918
First treatment episode (%)	28.0	27.8	30.1	29.5	28.5	29.1	29.4	31.5	32.7	31.6	31.0
Avg. years of use for clients in 1st treatment episode	8 yrs	9 yrs	8 yrs	8 yrs	8 yrs	8 yrs	11 yrs	11 yrs	11 yrs	12 yrs	11 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 2.1.06.