TABLE 1.
Demographics of imaging sample.
| Control (N = 45) | OCD (N = 45) | p | |
|---|---|---|---|
| Age | 32.5 (8.7) | 30.0 (7.6) | .14 |
| Gender (% male) | 40.0 | 46.7 | .67 |
| Handedness (% right) | 95.6 | 84.4 | .16 |
| IQ (WASI) | 112.7 (11.3) | 107.2 (12.7) | .03 |
| Y‐BOCS | 1.78 (3.02) | 25.1 (5.14) | <.001 |
| Obsessions | 1.22 (2.31) | 13.8 (4.33) | <.001 |
| Compulsions | 0.56 (1.65) | 13.2 (2.64) | <.001 |
| OBQ | 116.6 (47.13) | 194.2 (53.92) | <.001 |
| OCIR | 5.6 (7.14) | 33.1 (14.49) | <.001 |
| HADS: anxiety | 4.7 (3.68) | 13.3 (4.72) | <.001 |
| HADS: depression | 2.1 (2.28) | 8.2 (4.83) | <.001 |
| HAMA | 2.9 (3.15) | 20.1 (8.88) | <.001 |
| MADRS | 3.0 (3.48) | 19.7 (10.51) | <.001 |
| FD: resting state | 0.14 (0.05) | 0.17 (0.06) | .03 |
| FD: task | 0.16 (0.05) | 0.19 (0.07) | .03 |
Note: The right most column represents the p‐value for between group t tests (or chi‐squared tests for categorical data) for each variable (uncorrected for multiple comparisons).
Abbreviations: FD, framewise displacement; FSIQ, full scale IQ; HADS, hospital anxiety and depression scale; HAMA, hamilton anxiety rating scale; MADRS, Montgomery‐Asberg depression rating scale; OBQ, obsessional beliefs questionnaire; OCI, obsessive compulsive inventory; WASI, Wechsler abbreviated scale of intelligence; Y‐BOCS, Yale‐Brown obsessive compulsive scale.