Table 2.4. Admissions aged 12 and older, by frequency of use and usual route of administration according to primary substance of abuse: 2009 Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions.]
Frequency of use and usual route of administration	All admis- sions	Primary substance at admission
		Alcohol		Opiates		Cocaine		Mari- juana/ hashish	Metham- phetamine/ amphet- amines	Tran- quil- izers	Seda- tives	Hallu- cino- gens	PCP	Inhal- ants	Other/ none speci- fied
		Alcohol only	With second- ary drug	Heroin	Other opiates	Smoked cocaine	Other route
Total	1,963,089	460,772	358,340	282,212	138,639	131,886	52,046	354,159	115,182	14,427	5,030	1,777	4,404	1,519	42,696
Frequency of use
No use in the past month	28.7	26.6	27.1	16.6	21.1	30.8	43.0	36.9	47.2	19.9	25.6	47.4	41.2	28.5	33.6
1-3 times in the past month	12.6	16.0	13.5	3.7	5.6	12.2	15.4	16.7	15.0	8.0	8.5	12.5	16.0	15.1	6.3
1-2 times in the past week	9.3	13.5	10.7	2.7	3.6	9.3	9.6	10.2	9.0	4.7	6.9	8.6	10.4	10.6	6.4
3-6 times in the past week	11.6	12.8	13.3	7.1	9.6	13.9	11.1	12.2	11.5	9.5	13.0	9.4	10.8	12.3	8.9
Daily	37.8	31.1	35.5	70.0	60.0	33.8	21.0	24.0	17.3	57.9	46.1	22.1	21.7	33.4	44.7
Total	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
No. of admissions	1,919,670	455,465	355,764	281,298	137,246	130,675	51,217	350,252	114,267	14,286	4,970	1,758	4,377	1,492	16,603
Usual route of administration
Oral	49.4	99.4	99.6	1.2	66.2	- -	6.8	2.3	5.7	93.4	89.0	68.4	4.9	6.6	51.7
Smoking	29.4	0.3	0.2	2.7	2.2	100.0		96.7	64.4	1.6	2.2	19.6	92.5	4.6	20.7
Inhalation	8.5	0.1	0.1	28.9	18.1	- -	80.3	0.8	8.3	3.8	4.9	5.1	1.9	75.1	14.7
Injection	12.3	0.1	0.1	66.6	12.5	- -	10.5	0.1	20.8	0.8	3.3	6.0	0.3	12.7	6.0
Other	0.4	0.1	*	0.4	1.1	- -	2.5	0.2	0.7	0.3	0.6	0.9	0.4	0.9	6.9
Total	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0	100.0
No. of admissions	1,927,200	459,513	357,631	281,411	137,778	131,886	50,954	352,800	114,553	14,346	4,988	1,756	4,371	1,507	13,706
* Less than 0.05 percent.
- -  Quantity is zero.
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.