The purpose of this study is to identify factors associated with adolescent alcohol or drug (AOD) abuse/dependence, mental health and co-occurring problems, as well as factors associated with access to treatment. This is a secondary analysis of data from the National Survey on Drug Use and Health (NSDUH) 2000. The 12-month prevalence rate of adolescents with only mental health problems was 10.8 percent, 5.1 percent had AOD abuse/dependence only, and 2.7 percent had co-occurring problems. Approximately 15 percent of youths reported receiving behavioral health treatment in the past 12 months. Several factors associated with having behavioral health problems and receiving treatment are presented. Abstract published by arrangement with Taylor and Francis.