Chunk #25 — RESULTS — Twin correlations

Source: Evidence for an interaction between age at first drink and genetic influences on DSM-IV alcohol dependence symptoms.
Embedded: yes

Text

With the exception of a somewhat lower DZ correlation in the opposite sex pairs (rDZO=0.08), DZ correlations (rDZM=0.24, rDZF=0.17) were no less than half the MZ correlations (rMZM=0.30, rMZF=0.34), suggesting the role of additive genetic, and possibly, shared environmental factors.