Table 5.6b Heroin admissions by usual route of administration and opioid replacement therapy: TEDS 1994-2004 Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions. See Table 4.2a.]
Usual route of administration and opioid replacement therapy	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004
Usual route of administration
Injection	72.7	68.9	68.6	66.4	64.9	65.1	63.1	61.4	61.7	60.6	62.8
Inhalation	23.7	27.3	27.2	29.0	30.2	29.6	31.5	33.3	33.1	34.0	32.4
Smoking	2.0	2.2	2.4	2.7	2.7	3.0	2.8	2.5	2.5	2.5	2.3
Oral	1.1	1.1	1.1	1.2	1.4	1.4	1.7	1.9	1.8	2.1	1.8
Other	0.5	0.5	0.6	0.7	0.8	1.0	0.9	0.9	0.9	0.9	0.8
Total	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Opioid replacement therapy,1 by usual route of administration
Injection	59.9	54.0	50.1	44.8	44.4	43.4	41.6	39.4	37.8	33.6	31.4
Inhalation	40.0	28.5	22.7	22.8	32.2	29.5	29.1	30.7	31.6	29.5	27.2
Smoking	49.8	48.9	49.0	47.4	47.1	48.5	45.7	38.1	37.9	35.7	36.1
Oral	21.7	16.8	19.4	16.7	17.9	16.5	15.1	15.5	17.7	18.2	27.5
Other	45.3	39.9	39.7	36.5	35.5	36.6	28.2	31.3	33.7	30.7	35.3
Total	54.5	46.4	42.2	38.1	40.3	39.0	37.2	35.9	35.4	31.9	30.1
1 Medication-assisted therapy with methadone or buprenorphine.
SOURCE: Office of Applied Studies, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS). Data received through 2.1.06.