Table 1.
Demographic Characteristics by Diagnostic Group
| Characteristic | Bipolar II/BPD (N = 15) | MDD/BPD (N = 72) | Bipolar II Only (N = 15) | MDD Only (N = 71) | Statistics | |
|---|---|---|---|---|---|---|
|
| ||||||
| χ2 Test | df | |||||
| Age, mean ± SD, y** | 33.0 ± 10.8 | 32.4 ± 8.8 | 37.7 ± 11.1 | 38.0 ± 10.5 | ||
| Inpatient, N (%) | 7 (46.7) | 54 (75.0) | 11 (73.3) | 56 (78.9) | 6.74a | 3 |
| Female, % | 60.0 | 76.4 | 66.7 | 57.7 | 5.85 | 3 |
| Education, N | 22.35 | 15 | ||||
| Some high school | 0 | 4 | 1 | 3 | ||
| High school graduate | 2 | 11 | 1 | 14 | ||
| Some college | 5 | 30 | 3 | 20 | ||
| College graduate | 5 | 19 | 4 | 15 | ||
| Postgraduate | 2 | 8 | 5 | 18 | ||
| Race/Ethnicity, N | 6.17 | 12 | ||||
| White | 12 | 52 | 12 | 53 | ||
| African American | 1 | 10 | 2 | 4 | ||
| Asian | 0 | 1 | 0 | 1 | ||
| Hispanic | 2 | 8 | 1 | 10 | ||
| Other | 0 | 1 | 0 | 3 | ||
| Marital status, N | 17.97* | 9 | ||||
| Single | 8 | 47 | 7 | 25 | ||
| Married/cohabiting | 5 | 9 | 5 | 25 | ||
| Separated/divorced | 2 | 16 | 3 | 20 | ||
| Anxiety disorder comorbidity, N (%) | 6 (40.0) | 26 (36.1) | 5 (33.3) | 21 (29.6) | < 1.00 | 3 |
a
p < .10.
*
p < .05.
**
p < .001, t = −3.65, df = 171 for patients with BPD versus those without an Axis II disorder; because of the similarity of mean ages within each factor, the t test was computed for the mean ages of the participants with a BPD diagnosis (32.5 ± 9.1 years) and the participants without an Axis II diagnosis (38.0 ± 10.5 years).
Abbreviations: BPD = borderline personality disorder, MDD = major depressive disorder.