Table 1.
Sample Characteristics (N = 4,973)
| Patient Characteristics a | N | % |
|---|---|---|
| Age – Mean, SD | 13.5 | 3.1 |
| 0 – 6 Years | 193 | 3.9 |
| 7 – 12 Years | 1,248 | 25.1 |
| 13 – 17 Years | 3,532 | 71.0 |
| Sex - Female | 2,393 | 48.1 |
|
| ||
| Bipolar Subtype | N | % |
|
| ||
| Bipolar I | 1,743 | 35.0 |
| Bipolar II | 632 | 12.7 |
| Bipolar NOS | 2,466 | 49.6 |
| Cyclothymia | 132 | 2.6 |
|
| ||
| Disease Severity | N | % |
|
| ||
| Co-morbid Mental Health Conditions – Mean, SD | 1.5 | 1.3 |
| Any Inpatient Mental Health Visits | 1,705 | 34.3 |
|
| ||
| Prior Mental Health Diagnoses | N | % |
|
| ||
| Attention Deficit Hyperactivity Disorder | 1,249 | 25.1 |
| Oppositional Defiant Disorder | 313 | 6.3 |
| Conduct Disorder | 299 | 6.0 |
| Dysthymic Disorder | 248 | 5.0 |
| Anxiety Disorder | 222 | 4.5 |
| Other Mood Disorder | 548 | 11.0 |
| Substance Use (Drug or Alcohol Use) | 113 | 2.3 |
|
| ||
| Received Care from a Psychiatrist | N | % |
|
| ||
| Yes | 2,799 | 56.3 |
| No | 2,174 | 43.7 |
a
N(%) unless otherwise noted.
b
Co-morbid mental health conditions, prior mental health diagnoses, and receipt of care for bipolar disorder from a psychiatrist were identified from paid inpatient or outpatient claims from the 6-month pre-index diagnosis period. The occurrence of inpatient mental health visits were measured during the 18 month study period.