. Author manuscript; available in PMC: 2017 Mar 1.

Published in final edited form as: Behav Genet. 2015 Oct 22;46(2):183–192. doi: 10.1007/s10519-015-9741-7

Table 3.

Twin tetrachoric correlations and standard errors in female–female twin pairs: MZ twins above and DZ twins below the diagonal

	DA 1	CB 1	AUD 1	DA 2	CB 2	AUD 2
DA 1	1 (0)	0.564 (0.058)	0.739 (0.049)	0.708 (0.059)	0.477 (0.065)	0.384 (0.098)
CB 1	0.56 (0.07)	1 (0)	0.565 (0.056)	0.518 (0.068)	0.639 (0.039)	0.452 (0.07)
AUD 1	0.635 (0.078)	0.476 (0.073)	1 (0)	0.588 (0.073)	0.397 (0.069)	0.684 (0.058)
DA 2	0.401 (0.117)	0.308 (0.092)	0.36 (0.116)	1 (0)	0.577 (0.062)	0.666 (0.067)
CB 2	0.064 (0.118)	0.413 (0.056)	0.182 (0.098)	0.548 (0.069)	1 (0)	0.382 (0.076)
AUD 2	0.453 (0.101)	0.358 (0.08)	0.527 (0.085)	0.718 (0.061)	0.522 (0.065)	1 (0)

Within-syndrome cross twin correlations are bolded