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. 2011 Mar;72(2):210–220. doi: 10.15288/jsad.2011.72.210

Table 3.

Twin correlations for educational level and alcohol problems

MZF SS-DZF MZM SS-DZM OS-DZ
Education .58 .44 .68 .47 .31
RAPI .51 .22 .48 .22 .15
Max. drinks .44 .29 .48 .15 .18

Notes: MZF = monozygotic females; SS-DZF = dizygotic females from same-sex pairs; MZM = monozygotic males; SS-DZM = dizygotic males from same-sex pairs; OS-DZ = opposite-sex pairs; RAPI = Rutgers Alcohol Problem Index; max. drinks = maximum number of drinks consumed in a 24-hour period.