Table 1.
Demographic and clinical characteristics of youths with BD, SMD or no psychiatric history: age, rating scales, number of diagnoses and medications for the three study groups
| Characteristic | Children with BD (n = 76)
|
Children with SMD (n = 67)
|
Healthy children (n = 57)
|
|||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | |
| Age (years) | 12.84 | 2.67 | 12.47 | 1.85 | 13.20 | 2.13 |
| FSIQa | 106.07 | 15.23 | 103.88 | 13.08 | 112.56 | 13.90 |
| YMRSb | 48.99 | 7.57 | – | – | – | – |
| CDRS | 28.84 | 10.11 | 28.73 | 10.27 | – | – |
| MSQb | 22.69 | 9.00 | 26.07 | 7.84 | – | – |
| Number of comorbid/co-occurring diagnosesb | 1.99 | 1.65 | 2.62 | 1.22 | – | – |
| Number of medicationsb | 2.38 | 1.76 | 1.67 | 1.67 | – | – |
BD = bipolar disorder; SMD = severe mood dysregulation; FSIQ = full-scale IQ measured using Wechsler Abbreviated Scale of Intelligence; YMRS = Young Mania Rating Scale; CDRS = Children’s Depression Rating Scale; MSQ = Mood Symptoms Questionnaire.
a
HC > BD = SMD.
b
Data were not available for all participants for these variables. The following subsample of data was included in each variable for BD participants: YMRS (n = 75); MSQ (n = 68); medication status (n = 68). For SMD participants, co-occurring diagnoses (n = 66).