Demographic and clinical characteristics of the study sample
| Group; mean ± SD* | |||||
|---|---|---|---|---|---|
| Characteristics | OCD, n = 39 | Relatives, n = 20 | Control, n = 39 | F2,95 | p value |
| Sex, male:female | 20:19 | 10:10 | 20:19 | 0.096 | 0.95 |
| Age, yr | 26.6 ± 9.8 | 29.5 ± 8.6 | 26.0 ± 6.3 | 1.352 | 0.27 |
| Education, yr | 12.6 ± 3.3 | 12.9 ± 2.9 | 13.1 ± 3.2 | 0.078 | 0.93 |
| Disease duration, mo | 45.3 ± 37.3 | — | — | — | — |
| HAM-D total score | 6.5 ± 5.9 | — | — | — | — |
| HAM-A total score | 10.2 ± 3.6 | — | — | — | — |
| Y-BOCS total score | 26.7 ± 6.1 | — | — | — | — |
HAM-A = Hamilton Rating Scale for Anxiety; HAM-D = Hamilton Rating Scale for Depression; OCD = obsessive–compulsive disorder; SD = standard deviation; Y-BOCS = Yale–Brown Obsessive Compulsive Scale.
↵* Unless otherwise indicated.