Sociodemographic and clinical characteristics of patients with OCD and healthy controls*
| Characteristic | OCD (n = 34) | Healthy controls (n = 33) | Difference |
|---|---|---|---|
| Age, yr | 26.12 ± 5.95 | 25.91 ± 5.38 | t65 = −0.15; p = 0.88; d = −0.037; BF10 = 0.253 |
| Male, n (%) | 16 (47.1) | 15 (45.5) | χ21 = 0.017; p = 0.86; φ = 0.016; BF10 = 0.298 |
| Education, yr | 13.47 ± 2.79 | 15.61 ± 2.81 | t65 = 3.13; p = 0.003; d = 0.764; BF10 = 13.585 |
| Y-BOCS, total score | 25.24 ± 7.14 | — | — |
| Y-BOCS, obsessions score | 13.79 ± 4.11 | — | — |
| Y-BOCS, compulsions score | 11.45 ± 3.59 | — | — |
| HAM-A, total score | 6.26 ± 7.13 | — | — |
| HAM-D, total score | 5.52 ± 4.31 | — | — |
| Medication, % | |||
| Any | 87.9 | — | — |
| SSRI | 72.7 | — | — |
| TCA | 12.1 | — | — |
| Combination | 3.0 | — | — |
| Number of responses | |||
| Risk 1/7 | 18.18 ± 10.07 | 19.30 ± 8.78 | t65 = 0.487; p = 0.63; d = 0.119; BF10 = 0.277 |
| Risk 2/7 | 19.76 ± 7.93 | 19.70 ± 7.92 | t65 = −0.035; p = 0.97; d = −0.009; BF10 = 0.251 |
| Risk 3/7 | 24.65 ± 9.66 | 24.85 ± 8.78 | t65 = 0.089; p = 0.93; d = 0.022; BF10 = 0.251 |
| Risk 4/7 | 29.56 ± 9.08 | 30.61 ± 8.82 | t65 = 0.479; p = 0.63; d = 0.117; BF10 = 0.276 |
| Risk 5/7 | 34.79 ± 8.15 | 35.7 ± 8.34 | t65 = 0.448; p = 0.66; d = 0.110; BF10 = 0.273 |
| Risk 6/7 | 36.09 ± 10.11 | 36.09 ± 10.11 | t65 = 0.001; p = 0.99; d < 0.001; BF10 = 0.251 |
| Reaction time | |||
| Risk 1/7 | 1175 ± 280.4 | 1173 ± 194.1 | t58.83 = −0.045†; p = 0.96; d = −0.011; BF10 = 0.251 |
| Risk 2/7 | 1225 ± 259.0 | 1206 ± 171.8 | t57.52 = −0.359†; p = 0.72; d = −0.088; BF10 = 0.265 |
| Risk 3/7 | 1241 ± 256.0 | 1184 ± 160.5 | t55.71 = −1.089†; p = 0.28; d = −0.265; BF10 = 0.412 |
| Risk 4/7 | 1184 ± 245.6 | 1122 ± 135.8 | t51.78 = −1.277†; p = 0.21; d = −0.311; BF10 = 0.495 |
| Risk 5/7 | 1113 ± 225.1 | 1076 ± 152.1 | t58.10 = −0.784†; p = 0.44; d = −0.191; BF10 = 0.325 |
| Risk 6/7 | 1038 ± 109.8 | 1013 ± 157.6 | t65 = −0.602†; p = 0.55; d = −0.147; BF10 = 0.292 |
BF = Bayes factor; HAM-A = Hamilton Anxiety Rating Scale; HAM-D = Hamilton Depression Rating Scale; OCD = obsessive–compulsive disorder; SSRI = selective serotonin reuptake inhibitor; TCA = tricyclic antidepressant; Y-BOCS, Yale–Brown Obsessive Compulsive Scale.
↵* Unless otherwise indicated, values are presented as mean ± standard deviation.
↵† Degrees of freedom adjusted with Welch correction, due to non-equality of variances.