TY  - JOUR
PY  - 2013//
TI  - Age of first use as a predictor of current alcohol and marijuana use among college-bound emerging adults
JO  - Journal of child and adolescent substance abuse
A1  - Bergen-Cico, Dessa K.
A1  - Lape, Megan E.
SP  - 235
EP  - 253
VL  - 22
IS  - 3
N2  - BACKGROUND: Alcohol and marijuana are the most commonly used psychoactive substances; however, the sequencing and relationship between age of first use and continued current problematic use among college-bound emerging adults is not well understood. <br><br>METHODS: This is a cross-sectional study of current and historical alcohol and marijuana use among college-bound recent high school graduates (N = 1,365; age [approximately equal to]18 years). <br><br>RESULTS: Drinking was prevalent (78%, N = 1,055) and marijuana use was prevalent (46%, N = 622). Stepwise logistical regression revealed the lower the age of first use, the higher the prevalence of current problematic substance use. Those who initiate alcohol [less than or equal to] 12 are twice as likely to currently use marijuana frequently. A significant relationship was found between age of first use and non-social substance use (drinking, p = 0.0001; marijuana, p = 0.0025). The temporal ordering of substance use indicates that alcohol precedes marijuana use, and age of first alcohol use is relevant to rates of initiation and current marijuana use.<p />  <p>Language: en</p>
LA  - en
SN  - 1067-828X
UR  - http://dx.doi.org/10.1080/1067828X.2012.733591
ID  - ref1
ER  -