Table 2.
Demographic characteristics and psychiatric disorders in twins endorsing criteria A and B for hoarding disorder (hoarding group) compared to twins who did not endorse both criteria (comparison group)
| Variable | Group | Test stat | p value | |
|---|---|---|---|---|
| Hoarding (N = 28) | Comparison (N = 46) | |||
| N (%) | N (%) | |||
| Gender, n (%) | ||||
| Female | 23 (82.1) | 35 (76.1) | 0.3767 | 0.539 |
| Age, mean (SD) | 18.2 (1.2) | 19.0 (0.9) | 3.0787 | < 0.05 |
| Occupation, n (%) | ||||
| Student | 22 (78.6) | 28 (60.9) | 2.4889 | 0.115 |
| Working | 4 (14.3) | 13 (28.3) | 0.2548 | |
| Unemployed | 2 (7.1) | 4 (8.7) | 1.000 | |
| Diagnosis, n (%) | ||||
| Mood disorder (current) | 3 (10.7) | 0 (0.0) | 0.051 | |
| Mood disorder (lifetime) | 14 (50.0) | 2 (4.3) | < 0.000 | |
| Anxiety disorder (current) | 15 (53.6) | 4 (8.3) | < 0.000 | |
| Anxiety disorder (lifetime) | 5 (17.9) | 0 (0.0) | < 0.05 | |
| Eating disorder (current or lifetime) | 2 (7.1) | 4 (8.7) | 1.00 | |
| OCD (current or lifetime) | 1 (3.6) | 0 (0.0) | 0.378 | |
| ADHD (current or lifetime) | 1 (3.6) | 0 (0.0) | 0.378 | |
| ODD (current or lifetime) | 2 (7.1) | 0 (0.0) | 0.14 | |
| Any current or lifetime | 22 (78.6) | 7 (17.4) | 29.3147 | < 0.000 |
OCD obsessive–compulsive disorder, ADHD attention-deficit/hyperactivity-disorder, ODD oppositional defiant disorder