Sample characteristics
| Characteristic | UBD | Not UBD | Difference (95% CI) |
|---|---|---|---|
| N (%) | 17 (7.3) | 216 (92.7) | |
| Female, n (%) | 13 (77) | 169 (78) | 0.02 (−0.13 to 0.26) |
| Age, mean (SD) | 30.2 (6.4) | 32.9 (5.3) | 1.10 (0.98 to 1.23)a |
| Married/cohabiting | 5 (0.29) | 115 (0.53) | 0.24 (−0.01 to 0.41) |
| White British | 16 (0.94) | 202 (0.94) | 0.01 (−0.21 to 0.07) |
| Years of education, mean (SD) | 14.1 (1.9) | 14.5 (2.9) | 1.02 (0.94 to 1.10)a |
| Age at onset of depression, mean (SD) | 17.5 (5.4) | 20.5 (7.3) | 1.24 (1.02 to 1.52)a |
| First-degree family history of mood disorder | 5 (0.50) | 80(0.45) | 0.05 (−0.22 to 0.33) |
Proportions are given unless otherwise indicated. SCAN = Schedules for Clinical Assessment in Neuropsychiatry. UBD = unrecognised bipolar disorder.
↵a Back-transformed from transformed data.