Table 3.3
Clients in treatment, by substance abuse problem: 2003-20071
Number and percent distribution
Substance abuse problem and co-occurring mental health disorder Number of clients Percent distribution
2003 2004 2005 2006 2007 2003 2004 2005 2006 2007
Substance abuse problem  
Total2 1,084,116 1,066,351 1,066,860 1,122,556 1,133,414 100.0 100.0 100.0 100.0 100.0
Clients with alcohol abuse only   219,453   210,696   199,986   207,194   211,094  20.2  19.8  18.7  18.5  18.6
Clients with both alcohol and drug abuse   508,300   493,552   500,234   521,067   509,920  46.9  46.3  46.9  46.4  45.0
Clients with drug abuse only   356,363   362,103   366,640   394,295   412,400  32.9  34.0  34.4  35.1  36.4
1 Survey reference dates were: March 31, 2003-2006, and March 30, 2007. See Appendix A for changes in the survey base, methods, and instruments that affect analysis of trends over time. 
2 Tabulations exclude clients in facilities that did not respond to this question: in 2003, 8,430 clients reported by 217 facilities; in 2004, 5,900 clients reported by 245 facilities; in 2005, 14,189 clients reported by 307 facilities; and in 2006, 8,325 clients reported by 278 facilities; and in 2007, 2,011 clients reported by 225 facilities.
SOURCE: Office of Applied Studies, Substance Abuse and Mental Health Services Administration, National Survey of Substance Abuse Treatment Services (N-SSATS), 2003-2007. 

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