Table 2.9 Admissions aged 18 and older by education, according to primary substance of abuse: TEDS 2008 Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions.]
Education	All admis- sions	Primary substance at admission
		Alcohol		Opiates		Cocaine		Mari- juana/ hashish	Metham- phetamine/ amphet- amine	Tran- quil- izers	Seda- tives	Hallu- cino- gens	PCP	Inhal- ants	Other/ none speci- fied
		Alcohol only	Secon- dary drug	Heroin	Other opiates	Smoked cocaine	Other route
Total admissions aged 18 and older	1,751,957	426,334	330,068	266,085	109,107	152,181	59,460	225,560	118,744	10,718	4,068	1,320	3,793	751	43,768
Highest school grade completed
0 to 8	7.2	7.3	6.6	9.0	6.4	7.9	7.9	6.5	5.7	7.1	5.9	8.7	8.9	8.5	6.3
9 to 11	26.2	17.5	26.2	28.9	20.6	29.1	27.2	36.4	32.1	22.6	21.6	29.7	40.4	26.3	25.7
12 (or GED)	43.0	43.1	43.2	43.8	43.9	41.5	41.5	42.1	45.4	41.3	39.7	41.6	39.9	43.3	41.2
More than 12	23.6	32.1	24.0	18.4	29.1	21.6	23.5	15.0	16.8	29.0	32.8	20.0	10.8	21.8	26.8
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
Admissions aged 18 and older	1,698,142	412,270	322,688	258,645	105,247	150,332	58,380	219,351	116,799	10,252	3,995	1,298	3,738	737	34,410
SOURCE: Office of Applied Studies, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS). Data received through 8.31.09.