Table 1.
Offspring demographic and clinical characteristics in the Bipolar High-Risk Study
| Total Sample (n=441) | High-Risk (n=266) |
Controls (n=175) |
p-value | |
|---|---|---|---|---|
| Age, mean years ± SD | 16.73 ± 2.85 | 16.59 ± 2.84 | 16.95 ± 2.87 | 0.115 |
| Sex, n (%) | 0.858 | |||
| Male | 227 (51.47) | 136 (51.13) | 91 (52.00) | |
| Female | 214 (48.53) | 130 (48.87) | 84 (48.00) | |
| Race, n (%) | 0.063 | |||
| White | 393 (89.12) | 243 (91.35) | 150 (85.71) | |
| Non-White | 48 (10.88) | 23 (8.65) | 25 (14.29) | |
| Country, n (%) | 0.830 | |||
| United States | 320 (72.56) | 194 (72.93) | 126 (72.00) | |
| Australia | 121 (27.44) | 72 (27.07) | 49 (28.00) | |
| Home environment, n (%) | ||||
| (n=402) | (n=243) | (n=159) | ||
| Living with Mother | 358 (81.18) | 218 (81.95) | 140 (80.00) | 0.602 |
| (n=346) | (n=203) | (n=143) | ||
| Living with Father | 244 (53.33) | 154 (57.89) | 90 (51.54) | 0.009 |
| n=402 | n=245 | n=157 | ||
| Offspring BD, n (%) | 35 (8.71) | 34 (13.88) | 1 (0.64) | <0.001 |
Note: BD, bipolar disorder; SD, standard deviation. Percentages are within column.