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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Behav Genet. 2010 Oct 2;41(4):476–487. doi: 10.1007/s10519-010-9400-y

Table 2.

Phenotypic polychoric correlations between phenotypes, statistical significance corrected for the correlated nature of twins

Age of depressive symptoms Age of alcohol use
12 (N = 1,280) 14 (N = 1,154) 17.5 (N = 904)
12 (N = 1,216) 0.294*** 0.098* 0.067
14 (N = 700) 0.201** 0.252*** 0.134**
17.5 (N = 901) 0.151* 0.145*** 0.138***
*

p < 0.05,

**

p < 0.01,

***

p < 0.001