Table 1.
Polychoric twin correlations for alcohol dependence factor score (AD-FS), binge eating (BE), and compensatory behaviors (CB)
| Variable | rMZM [95% CI] | rDZM [95% CI] | rMZF [95% CI] | rDZF [95% CI] | rDZO [95% CI] |
| AD-FS | .47 [.37, .56] | .14 [.00, .29] | .52 [.44, .58] | .19 [.07, .30] | .22 [.10, .33] |
| BE | .37 [.10, .60] | .43 [.14, .66] | .40 [.26, .53] | .11 [.00, .27] | .12 [.00, .33] |
| CB | – | – | .50 [.41,.58] | .30 [.16, .42] | – |
| AD-FS and BE | .11 [-.03, .24] | .02 [-.15, .18] | .10 [.01, .20] | .11 [.01, .20] | .02 [-.10, .14] |
| AD-FS and CB | – | – | .17 [.09, .24] | .03 [.00, .12] | – |
| BE and CB | – | – | .30 [.20, .39] | .04 [.00, .15] | – |
Notes: rMZM = monozygotic twin correlation in males; rDZM = dizygotic twin correlation in males; rMZF = monozygotic twin correlation in females; rDZF = dizygotic twin correlation in females; rDZO = dizygotic opposite-sex twin correlation; CI = confidence interval. Compensatory behaviors were not asked in men.