Table 3.6. Heroin admissions aged 12 and older, by usual route of administration, age group, and characteristics of first treatment episode: 1999-2009
Percent distribution
[Based on administrative data reported to TEDS by all reporting States and jurisdictions.]
Usual route of administration,age group,
and characteristics of first
treatment episode
1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
Total heroin admissions 257,208 269,875 277,268 284,324 273,756 262,278 260,591 268,731 262,579 281,159 282,212
Injection  65.1  62.6  61.0  61.6  60.4  62.1  62.8  63.6  64.2  64.7  66.6
Age group
12 to 19 years   1.9   1.9   1.8   1.8   1.8   1.9   2.0   1.9   1.9   2.1   2.5
20 to 34 years  24.6  24.1  24.9  25.6  26.0  28.0  29.1  30.9  32.4  34.3  37.4
35 to 44 years  24.0  22.0  20.2  19.2  17.8  17.3  16.8  15.9  15.3  14.1  13.6
45 years and older  14.6  14.7  14.1  15.0  14.8  14.9  14.8  14.9  14.6  14.2  13.2
First treatment episode (%)  19.5  19.9  19.4  20.4  19.9  19.4  23.3  22.4  20.6  20.6  21.3
Average years of use before
    first treatment episode
 14.1  13.1  12.8  12.4  12.7  12.6  12.9  13.6  13.4  12.5  11.6
Inhalation  29.6  31.9  33.6  33.2  34.1  33.0  33.1  32.4  31.7  31.0  28.9
Age group
12 to 19 years   1.0   0.9   0.8   0.8   0.8   0.7   0.8   0.7   0.6   0.7   0.6
20 to 34 years  13.7  13.8  13.7  12.7  12.0  11.1  10.6   9.7   9.0   8.9   8.5
35 to 44 years  10.8  12.3  13.3  13.3  13.8  13.4  13.2  12.5  11.9  11.0   9.6
45 years and older   4.0   5.0   5.7   6.4   7.5   7.8   8.5   9.6  10.2  10.4  10.1
First treatment episode (%)  24.4  25.8  26.0  25.7  25.0  25.6  29.0  28.0  24.1  23.6  24.7
Average years of use before
    first treatment episode
  9.9  11.1  11.7  12.1  13.0  13.2  13.1  14.0  14.9  14.2  14.2
Other   5.3   5.4   5.4   5.2   5.5   4.9   4.1   4.0   4.1   4.3   4.4
Total 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 240,165 252,280 259,156 265,701 255,613 243,953 258,318 266,865 261,147 279,576 281,411
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.

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