Table 2.
Subject demographics and clinical characteristics by recruitment site
| N | Sex (females) (%) | Age at assessment (years) | Age of OC symptom onset (years) | YBOCS severity score | YBOCS obsession score | YBOCS compulsion score | Positive family history | |
|---|---|---|---|---|---|---|---|---|
| Boston | 329 | (41.5%) | 32.4 ± 11.3 | 15.4 ± 8.2 | 27.9 ± 6.3 | 14.2 ± 3.5 | 13.7 ± 3.7 | 29.1% |
| San Franc. | 124 | (46.8%) | 31.9 ± 13.8 | 8.8 ± 4.3 | 27.1 ± 7.3 | 13.7 ± 3.8 | 13.4 ± 4 | NA |
| Groningen | 149 | (46.8%) | 38.7 ± 11.9 | 19.0 ± 10.6 | 17.4 ± 7.9 | 8.2 ± 4.4 | 9.1 ± 4.7 | NA |
| S.Africa | 393 | (49.6%) | 32.2 ± 13.7 | 16.7 ± 9.9 | 19.0 ± 8.2 | NA | NA | NA |
| Amsterdam | 229 | (56.3%) | 36.0 ± 10.9 | 16.7 ± 8.3 | 23.3 ± 7.9 | 11.4 ± 4.2 | 11.9 ± 4.7 | 48.2% |
| Total cohort | 1224 | (50.5%) | 33.8 ± 12.6 | 16.0 ± 9.2 | 22.6 ± 8.6 | 12.1 ± 4.5 | 12.2 ± 4.6 | NA |
NA not available