This report is the third (in a series of four) regarding the First Release Reports for the 2014 NSDUH. This report presents data from the 2002 through 2014 NSDUHs for substance use treatment and mental health service use among people aged 12 or older. Results are presented for adolescents aged 12 to 17 and for adults aged 18 or older. Where trends are presented, the report focuses on long-term trends by comparing
estimates from the 2014 NSDUH with comparable estimates in 2002 to 2013 (or in 2008 to 2013 for some estimates of mental health service use). Statistically significant differences are noted between estimates in 2014 and those in prior years.