. Author manuscript; available in PMC: 2012 Jul 1.

Published in final edited form as: Behav Genet. 2010 Dec 12;41(4):459–475. doi: 10.1007/s10519-010-9417-2

Table III.

Beta Weights and Standard Error for Effects of Age and Sex on Externalizing Phenotypes

Externalizing Phenotype	Sex	Age	Age²	Age × Sex	Age² × Sex	R²
Nicotine	.064 (.020)	.24 (.013)^*	−.188 (.017)^*	.073 (.014)^*	.116 (.025)^*	.110^*
Alcohol consumption	.223 (.013)^*	.368 (.014)^*	−.279 (.012)^*	.138 (.016)^*	.049 (.017)	.288^*
Alcohol dependence	.341 (.023)^*	.118 (.012)^*	−.151 (.014)^*	.248 (.014)^*	−.090 (.028)	.186^*
Illicit drug	.236 (.016)^*	.128 (.012)^*	−.182 (.015)^*	.098 (.014)^*	−.096 (.019)^*	.090^*
Behavioral disinhibition	.516 (.018)^*	−.149 (.013)^*	−.089 (.013)^*	.111 (.018)^*	−.078 (.022)	.224^*
Externalizing	.362 (.017)^*	.211 (.014)^*	−.257 (.014)^*	.198 (.016)^*	−.019 (.021)	.264^*

Note.

p < .001