This short report uses 2011 to 2014 National Survey on Drug Use and Health (NSDUH) to assess substance initiation and substance use among part-time and full-time college students aged 18 to 22.
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This report describes changes in the 2014 and 2015 NSDUHs that were designed to increase the efficiency of data collection and processing and to improve the quality of the data collected. In 2014, changes were made in the sample sizes allocated to each state and to different age groups in...