Table 3.4
Admissions by primary substance of abuse, according to frequency of use, usual route of administration, and age at first use: TEDS 2004
Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions. See Table 4.2a.]
Frequency of use, usual route of administration, and age at first use All admis-
sions
Primary substance at admission
Alcohol Opiates Cocaine Mari-
juana/
hashish
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
Usual 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 11.9 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 9.5 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
- - 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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