Table 1.
Demographic, Clinical, and Family History Characteristics of Youth with BD-I/II Diagnosed Before 18 Years Old (n=297)
| Demographics | |
| Sex: n (%) Female | 143 (48.15%) |
| Intake Age: Mean (SD) | 12.85 (3.26) |
| Race: n (%) Non-White | 46 (15.49%) |
| SES: Mean (SD) | 3.41 (1.21) |
| Total Follow-Up Duration (years): Median (Q1,Q3) | 13.32 (12.00,14.81) |
| Number of Total Follow-Up Visits: Median (Q1,Q3) | 16 (12,20) |
| Adult Follow-up Duration (years): Median (Q1,Q3) | 7.76 (2.48,6.70) |
| Number of Adult Follow-Up Visits: Median (Q1,Q3) | 8 (5,13) |
| Clinical Variables (up to age 18 years) | |
| BD Subtype | |
| BD-I: n (%) | 252 (84.85%) |
| BD-II: n (%) | 45 (15.15%) |
| Major Depressive Episode: n (%) | 256 (86.20%) |
| Age at Mania/hypomania Onset: Median (Q1,Q3) | 11.43 (7.89,14.27) |
| Age at Oldest Mania/hypomania: Median (Q1,Q3) | 15.61 (12.62,17.19) |
| >1 Manic/hypomanic Episode: n (%) | 199 (67.00%) |
| Anxiety: n (%) | 196 (65.99%) |
| ADHD: n (%) | 194 (65.32%) |
| DBD: n (%) | 180 (60.61%) |
| SUD: n (%) | 72 (24.24%) |
| Treatment and Hospitalization (up to age 18 years) | |
| Medication History | |
| Antipsychotic: n (%) | 223 (75.08%) |
| Antimanic Anticonvulsant: n (%) | 139 (46.80%) |
| Lithium: n (%) | 137 (46.13%) |
| Lamictal: n (%) | 75 (25.25%) |
| ≥1 Inpatient Hospitalization: n (%) | 212 (71.38%) |
| Family History (1st or 2nd Degree Relative) | |
| Mania: n(%) | 183 (61.62%) |
| Suicide Attempt: n(%) | 134 (45.12%) |
| Anxiety: n(%) | 224 (75.42%) |
| SUD: n(%) | 214 (72.05%) |
| Psychosis : n(%) | 58 (19.53%) |
| Depression: n(%) | 260 (87.54%) |