Table 3.3
Clients in treatment, by substance abuse problem and diagnosed co-occurring substance abuse and mental health disorders: 2006-20101
Number and percent
Substance abuse problem and diagnosed co-occurring
substance abuse and mental health disorders
Number of clients Percent distribution
2006 2007 2008 2009 2010 2006 2007 2008 2009 2010
Total2 1,130,881 1,135,425 1,192,490 1,182,077 1,175,462  
Substance abuse problem  
Clients with both alcohol and drug abuse   521,067   509,919   545,330   517,887   498,671  46.1  44.9  45.7  43.8  42.5
Clients with drug abuse only   394,295   412,400   421,583   441,128   459,069  34.9  36.3  35.4  37.3  39.1
Clients with alcohol abuse only   207,194   211,094   222,389   220,373   215,101  18.3  18.6  18.6  18.6  18.3
Diagnosed co-occurring substance abuse and mental health disorders3 n/c   416,260   462,260   456,567   479,699 n/c  36.7  38.8  38.6  40.9
1 Survey reference dates were: March 31, 2006, March 30, 2007, and March 31, 2008-2010. See Appendix A for changes in the survey base, methods, and instruments that affect analysis of trends over time.
2 Totals include clients in facilities that did not respond to the substance abuse problem question (in 2006, 8,325 clients reported by 278 facilities; in 2007, 2,011 clients reported by 223 facilities; in 2008, 3,188 clients reported by 188 facilities; in 2009, 2,690 clients reported by 152 facilities, and in 2010, 2,620 clients reported by 174 facilities). 
3 For the diagnosed co-occurring disorders, numbers include clients in facilities that did not respond to the question (in 2007, 17,399 clients reported by 338 facilities; in 2008, 15,462 clients reported by 263 facilities; in 2009, 13,067 clients reported by 220 facilities, and in 2010, 5,593 clients reported by 211 facilities).
NOTE:  Percentages may not sum to 100 percent because of rounding.
n/c  Not collected until 2007.
SOURCE: Center for Behavioral Health Statistics and Quality, Substance Abuse and Mental Health Services Administration, National Survey of Substance Abuse Treatment Services (N-SSATS), 2006-2010.

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