Table 1.
Sample Characteristics (430 families; 860 twin adolescents/young adults)
| N (%) | |
|---|---|
| Zygosity | |
| Dizygotic | 264 (61.4) |
| Opposite-Sex | 122 (28.4 of full sample) |
| Monozygotic | 166 (38.6) |
| Race | |
| Caucasian | 399 (92.8) |
| African American | 31 (7.2) |
| Ethnicity | |
| Latino/Latina | 17 (3.9) |
| Sex | |
| Male | 368 (42.8) |
| Female | 492 (57.2) |
| DSM-5 Diagnoses and Phenomena (Twin) | |
| Panic Attacks | 102 (11.9) |
| Panic Disorder | 10 (1.2) |
| Social Anxiety Disorder | 116 (13.5) |
| Specific Phobia | 102 (11.9) |
| Generalized Anxiety Disorder | 25 (2.9) |
| Major Depressive Disorder | 131 (15.3) |
| DSM-5 Diagnoses and Phenomena (Parent) | |
| Panic Attacks | 59 (14.0) |
| Panic Disorder | 9 (2.1) |
| Social Anxiety Disorder | 18 (4.3) |
| Specific Phobia | 19 (4.5) |
| Generalized Anxiety Disorder | 46 (10.9) |
| Major Depressive Disorder | 129 (30.6) |