TABLE 3.
Twin Intraclass Correlations and Univariate ACE Model Estimates for All Variables
| Attentional Control
|
Generalized Anxiety
|
Obsessive-Compulsive Anxiety
|
Separation Anxiety
|
Social Anxiety
|
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| MZ | DZ | MZ | DZ | MZ | DZ | MZ | DZ | MZ | DZ | |
| All | .59 | .15 | .53 | .35 | .33 | .35 | .55 | .45 | .57 | .26 |
| Females | .61 | .13* | .55 | .33 | .28 | .45 | .62 | .38 | .64 | .24 |
| Males | .57 | .17 | .52 | .38 | .36 | .20 | .48 | .53 | .51 | .28 |
|
| ||||||||||
| Additive genetic, shared environmental and nonshared environmental parameter estimates from univariate ACE models
|
||||||||||
| Additive genetic | .73 | .53 | .39 | .52 | .77 | |||||
| Shared env. | – | .05 | – | .07 | – | |||||
| Nonshared env. | .27 | .42 | .61 | .41 | .23 | |||||
Note.
*
All correlations are significant at p < .01, except the female DZ twin correlation for AC which is significant at p < .05. MZ = monozygotic twins; DZ = dizygotic twins.