Table 3
Admissions by primary substance of abuse, according to frequency of use, route of administration, age at first use,
and number of prior treatment epsiodes: TEDS 2004
Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions.]
Frequency of use, route of administration, age at first use, and number of prior treatment episodes All admis-
ions
Primary substance at admission
Alcohol Opiates Cocaine Mari-
juana/
hahish
Stimulants Tran-
quil-
izers
Seda-
tives
Hallu-
cino-
gens
PCP Inhal-
ants
Other/
none
speci-
fied
Alcohol
Only
With
secondary
drug
Heroin Other
opiates
Smoked
cocaine
Other
route
Metham-
phetamine/
amphet-
amine
Other
stimu-
lants
Total  1,875,026 416,510 336,954 265,895 63,243 184,949 71,438 298,317 150,402 1,007 8,558 4,487 2,408 3,272 1,209 66,377
Frequency of use                
No use in the past month  26.8  26.9  26.9  12.9  18.7  23.4  32.7  35.0  37.3  34.1  18.9  26.6  51.5  41.9  35.1  39.8
1-3 times in the past month  11.7  14.8  12.1   2.6   4.8  10.6  14.6  16.5  12.3  10.8   8.0   9.1  12.0  12.5  15.0   8.8
1-2 times per week   9.1  12.2  10.0   2.1   3.2   9.8  11.7  10.3   8.6   8.8   5.2   6.4   8.0   9.8   9.1   7.2
3-6 times per week  10.8  11.7  11.5   4.7   8.3  14.8  13.4  11.5  11.4   9.8   7.9  10.0   8.7   9.6  12.8   8.8
Daily  41.5  34.3  39.5  77.6  65.1  41.3  27.6  26.7  30.3  36.5  59.9  47.9  19.8  26.2  27.9  35.4
Total  100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
No. of admissions  1,723,266 384,731 314,147 246,382 60,997 182,746 64,637 291,259 149,006   962 8,289 4,319 2,286 3,051 1,160  9,294
Route of administration                
Oral  44.6  99.2  99.3   1.8  73.1      - -   6.7   2.4   4.9  53.2  92.6  88.3  61.1   6.5   5.4  50.1
Smoking  33.5   0.4   0.4   2.3   2.1 100.0      - -  96.7  59.1  34.1   3.3   3.5  29.1  88.8   4.1  17.8
Injection   9.5   0.1   0.1  62.8  11.8      - -  12.5   0.1  21.1   3.9   1.1   4.2   5.5   1.4   1.9   3.0
Inhalation  11.9   0.2   0.1  32.4  12.2      - -  77.7   0.7  13.6   7.8   2.7   2.9   3.8   3.0  87.7   5.0
Other   0.6   0.1   0.1   0.8   0.9      - -   3.1   0.2   1.3   1.0   0.3   1.0   0.6   0.3   0.9  24.1
Total  100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
No. of admissions  1,706,903 377,344 303,173 247,234 61,068 184,949 62,858 293,229 148,276   983 8,328 4,342 2,285 3,065 1,173  8,596
Age at first use                
12 years or under  13.6  13.8  23.5   3.2   3.3   3.3   3.8  24.9   5.4  11.7   5.4   4.7  11.6   6.6  25.4  20.4
13 to 14 years  16.3  15.8  23.9   6.4   4.6   5.1   6.8  30.8  11.6  14.4   7.4   8.4  19.5  14.1  28.5  12.7
15 to 16 years  21.2  27.3  27.4  12.8  10.2   9.9  14.9  25.1  18.3  18.7  12.9  13.2  24.8  20.5  20.9  15.6
17 to 18 years  16.3  22.6  14.3  17.2  11.9  13.1  18.4  11.3  17.1  16.1  10.9  11.6  16.6  22.5   8.1  12.3
19 to 20 years   8.1   7.8   4.3  13.4  11.0  11.0  12.9   3.4  10.7   9.8   8.7   9.7  10.0  12.7   4.7   7.0
21 to 25 years  11.4   8.2   4.1  20.5  19.7  22.8  21.0   2.9  16.6  11.5  14.3  14.8   9.2  15.4   5.2  10.9
26 to 30 years   6.0   2.0   1.1  12.5  13.9  16.1  10.8   0.9   9.4   7.5  12.3  11.9   3.8   5.1   2.0   6.8
Over 30 years   7.3   2.4   1.3  14.0  25.4  18.8  11.3   0.7  10.9  10.3  28.2  25.7   4.5   3.2   5.2  14.2
Total  100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
No. of admissions  1,592,935 379,679 302,635 231,027 59,177 166,383 66,561 270,946  89,244   881 8,131 4,008 2,211 2,328 1,055  8,669
No. of prior treatment episodes                
None  43.5  50.7  38.2  22.0  39.5  32.5  40.4  57.6  49.9  47.6  43.3  46.3  48.2  42.0  55.1  73.5
1  23.2  22.4  23.5  20.1  25.4  23.6  25.7  24.6  26.6  26.4  23.2  24.0  24.8  24.7  19.2  12.1
2  12.4  10.7  13.5  15.7  13.9  15.4  14.2   9.6  11.7  12.0  12.0  13.5  12.3  15.0   8.6   5.2
3   6.9   5.8   8.0  10.6   7.6   9.5   7.7   3.9   5.2   5.5   6.3   5.9   5.6   6.8   4.9   2.5
4   3.9   3.1   4.7   7.0   4.3   5.6   4.1   1.6   2.4   1.9   4.1   3.2   2.9   3.7   3.2   1.3
5 or more  10.2   7.3  12.1  24.6   9.3  13.4   7.9   2.8   4.0   6.5  11.1   7.1   6.4   7.8   9.1   5.5
Total  100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0
No. of admissions  1,531,474 333,988 262,052 210,367 53,550 164,230 58,612 262,744 131,827   890 6,569 3,879 2,000 2,929 1,059 36,778
- -  Quantity is zero.
SOURCE: Office of Applied Studies, Substance Abuse and Mental Health Services Administration, Treatment Episode Data Set (TEDS). Data received through 2.1.06. 
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