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. Author manuscript; available in PMC: 2014 Mar 1.
Published in final edited form as: Alcohol Clin Exp Res. 2013 Jan 24;37(3):498–506. doi: 10.1111/j.1530-0277.2012.01939.x

Table 2.

Results Univariate Regression Analyses: Effect Sizes (in Odds Ratio) of Risk and Protective Variables Regarding Alcohol Use on Latent Trajectory Membership

Risk and protective variables High (class 1, 2) vs. low drinking (class 5, 6)
High (class 1, 2) vs. moderate drinking (class 3, 4)
Persistent high drinking (class 1) vs. high but later reduced drinking (class 2)
Peak and decline (class 3, 5) vs. gradual increase in drinking (class 4, 6)
OR p OR p OR p OR p
Genetic risk alcohol use disorder 1.44 0.002 0.94 0.439 1.16 0.173 1.45 0.001*
Genetic risk externalizing disorder 2.11 <0.001* 1.39 <0.001* 1.37 0.003 1.41 <0.001*
Sensation seeking 1.39 <0.001* 1.42 <0.001* 1.39 0.009 1.00 0.993
Early trauma 1.15 0.595 1.48 0.180 0.94 0.871 0.67 0.198
Early peer deviance 2.17 <0.001* 1.53 <0.001* 1.02 0.895 2.00 <0.001*
Late peer deviance 4.30 <0.001* 2.19 <0.001* 1.63 0.002 2.10 <0.001*
ADHD 1.67 <0.001* 1.27 0.002 1.12 0.276 1.35 <0.001*
Low school performance 1.34 <0.001* 1.41 <0.001* 1.28 0.015 0.94 0.443
Neuroticism 1.20 0.014 1.17 0.041 1.35 0.004 1.01 0.940
Social church activities 0.64 <0.001* 0.87 0.107 0.66 0.001* 0.72 <0.001*
Social regular activities 0.72 <0.001* 0.87 0.060 0.72 0.003 0.83 0.023
Negative parental attitude 1.41 <0.001* 1.12 0.134 0.99 0.904 1.30 <0.001*
Parental monitoring 0.53 <0.001* 0.74 <0.001* 0.95 0.668 0.69 <0.001*

OR, odds ratio; ADHD, attention deficit hyperactivity disorder.

Analyses were weighted for the individual probability of class membership. Several contrasts were tested: the effects of the variables on being a member of (i) trajectories characterized by high compared with low level alcohol use, (ii) trajectories characterized by high compared with moderate level alcohol use, (iii) a trajectory characterized by persistence of high alcohol use compared with declining use over time, and (iv) trajectories characterized by a peak and subsequent decline versus a gradual increase in alcohol use.

*

Significant following Bonferroni correction (52 tests = 13 variables × 4 contrasts).