TABLE 1.
Demographic and Clinical Characteristics of Older Subjects With Bipolar Disorder (N = 54) or Major Depressive Disorder (N = 108)
| Bipolar (N = 54) | Depressed (N = 108) | χ 2 or t | df | p | |
|---|---|---|---|---|---|
| Men age (SD), years | 69.5 (7.6) | 70.5 (6.6) | 0.86 | 160 | 0.39 |
| Men, no. (%) | 37 (20) | 37 (40) | 0.00 | 1 | 1.00 |
| White, no. (%) | 89 (48) | 92 (99) | 0.33 | 1 | 0.57 |
| Mean duration from first onset (SD), years | 33.7 (15.2) | 30.3 (15.0) | 1.35 | 160 | 0.18 |
| Less than high school education, no. (%) | 2 (4) | 17 (16) | 13.45 | 4 | 0.01 |
| High school education, no. (%) | 15 (28) | 44 (41) | |||
| Some college, no. (%) | 11 (20) | 22 (20) | |||
| College, no. (%) | 14 (26) | 12 (11) | |||
| Graduate, no. (%) | 12 (22) | 13 (12) | |||
| Never married, no. (%) | 2 (4) | 34 (31) | 25.03 | 3 | 0.0001 |
| Married, no. (%) | 26 (48) | 20 (19) | |||
| Separated/divorced, no. (%) | 17 (31) | 42 (39) | |||
| Widowed, no. (%) | 9 (17) | 12 (11) | |||
| Mean no. of nonpsychotropic medications (SD); median | 4.9 (3.2); 4 | 7.6 (6.5); 6 | 2.54 | 160 | 0.012a |
| Current smoker, no. (%) | 9 (17) | 11 (11)b | 4.49 | 1 | 0.04 |
a
Square root transformation before statistical comparison.
b
Ninety-six patients.