Table 1.
Demographics of the participants
| BD patients
|
Healthy subjects (n = 27) | Statistics | ||
|---|---|---|---|---|
| Suicidal (n = 10) | Non-suicidal (n = 10) | |||
| Age, mean±SD (y) | 36.2±10.1 | 44.2±12.5 | 36.9±13.8 | F(2,44)=1.94, p=0.16 |
| Ethnicity (n) | ||||
| Caucasian | 5 | 7 | 11 | χ2=12.0, p=0.15 |
| Hispanic | 2 | 3 | 13 | |
| Asian | 2 | 0 | 2 | |
| Afro-American | 0 | 0 | 2 | |
| Others | 1 | 0 | 0 | |
| Education level, median± SD | 5.0±1.4 | 4.0±1.6 | 4.0±1.6 | χ2=7.2, p=0.85 |
| Age onset of illness, mean±SD (y) | 17.1±6.4 | 13.6±8.3 | NA | t=−1.0, p=0.32 |
| Length of illness, mean±SD (y) | 22.4±15.7 | 27.2±14.0 | NA | t=2.20, p=0.05 |
| YMRS | 2.7±4.2 | 5.5±8.6 | NA | t=−0.93, p=0.37 |
| HAM-D | 16.3±10.4 | 14.4±9.4 | NA | t=−0.43, p=0.67 |
| Total brain volumes (cm3) | 1143.3±91.0 | 1170.2±69.2 | 1152.4±112.5 | F(2,44)=0.19, p=0.16 |
|
| ||||
| Corpus callosum area (cm2) | ||||
| Anterior genu | 0.99±0.20 | 1.00±0.23 | 1.01±0.19 | F(2,44)=0.07, p=0.93 |
| Middle genu | 0.40±0.08 | 0.40±0.16 | 0.41±0.09 | F(2,44)=0.02, p=0.98 |
| Posterior genu | 0.35±0.09 | 0.37±0.11 | 0.38±0.07 | F(2,44)=0.49, p=0.61 |
| Anterior body | 0.50±0.09 | 0.53±0.08 | 0.55±0.08 | F(2,44)=1.24, p=0.30 |
| Posterior body | 0.44±0.10 | 0.48±0.09 | 0.49±0.07 | F(2,44)=1.26, p=0.29 |
| Isthmus | 0.37±0.09 | 0.38±0.09 | 0.41±0.08 | F(2,44)=1.28, p=0.29 |
| Splenium | 1.46±0.23 | 1.51±0.22 | 1.51±0.26 | F(2,44)=0.14, p=0.87 |
YMRS, Young Mania Rating Scale; HAM-D, Hamilton Rating Scale for Depression