Table 5.5b Heroin admissions by route of administration and planned use of methadone: TEDS 1992-2002 Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions. See Table 4.2.]
Route of heroin administration and planned use of methadone	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002
Route of administration
Injection	76.8	73.8	72.7	68.9	68.6	66.4	64.9	65.1	63.1	61.5	61.9
Inhalation	19.8	22.9	23.7	27.3	27.2	29.0	30.2	29.6	31.5	33.2	32.9
Smoking	1.4	1.7	2.0	2.2	2.4	2.7	2.7	3.0	2.8	2.5	2.5
Oral	1.3	1.1	1.1	1.1	1.1	1.2	1.4	1.4	1.7	1.9	1.8
Other	0.7	0.6	0.5	0.5	0.6	0.7	0.8	1.0	0.9	0.9	0.9
Total	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
Methadone use planned as part of treatment, by route of administration
Injection	61.2	59.8	59.9	54.0	50.1	44.8	44.4	43.4	41.7	39.5	38.2
Inhalation	44.2	41.9	40.0	28.5	22.7	22.8	32.2	29.5	29.1	30.8	32.1
Smoking	42.8	44.6	49.8	48.9	49.0	47.4	47.1	48.5	46.0	38.2	38.2
Oral	17.3	18.1	21.7	16.8	19.4	16.7	17.9	16.4	15.0	15.5	17.6
Other	47.8	40.6	45.3	39.9	39.7	36.5	35.5	36.4	27.3	29.9	32.7
Total	56.9	54.9	54.5	46.4	42.2	38.1	40.3	39.0	37.3	36.0	35.7
SOURCE: Office of Applied Studies, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS) - 3.01.04.