Table 1.
Demographic and clinical variables of participants.
| Measures | OCD (n = 62) | UFDR (n = 53) | HC (n = 73) | F/χ2 | p |
|---|---|---|---|---|---|
| Demographic Measures | |||||
| Age (years) (SD) | 26.8(8.3) | 23.9(8.3) | 27.2(9.4) | 2.4 | 0.10 |
| Gender (Male: Female) | 45:17 | 32:21 | 51:22 | 2.1 | 0.34 |
| Education (years) (SD) | 12.77(3.5) | 11.4(3.1) | 11.6(3.3) | 0.1 | 0.87 |
| Head motion (SD) | 0.0673 (0.03954) | 0.0574 (0.02799) | 0.0517 (0.02756) | 4.0 | <0.05 |
| Clinical Measures | |||||
| YBOCS total (SD) | 29.0(4.9) | 3.8(3.3) | 0(0) | 32.9 | <0.001 |
| YBOCS obsessions (SD) | 14.6(2.9) | 1.8(2.0) | 0(0) | 27.8 | <0.001 |
| YBOCS compulsions (SD) | 14.4(3.1) | 1.9(2.1) | 0(0) | 24.7 | <0.01 |
| OCI-R (SD) | 21.8(13.6) | 14.5(13.1) | 14.8(13.3) | 5.9 | <0.01 |
| BDI(SD) | 16.4(12.6) | 7.9(5.7) | 5.9(5.5) | 27.3 | <0.001 |
| STAI state (SD) | 49.0(20.7) | 29.5(15.2) | 25.8(17.6) | 30.2 | <0.001 |
| STAI trait (SD) | 50.0(20.4) | 39.2(19.6) | 33.6(15.4) | 13.6 | <0.001 |
OCD: Obsessive–compulsive disorder group; UFDR: unaffected first-degree relative group; HC: healthy control group. YBOCS: Yale-Brown Obsessive-Compulsive Scale; OCI-R: Obsessive Compulsive Inventory–Revised; BDI: Beck Depression Inventory; STAI: State-Trait Anxiety Inventory. SD: standard deviation.