Demographic data for study participants
| Variable | Group; mean (and SD) [range]* | ||
|---|---|---|---|
| Control n = 13 | BD lithium-responsive n = 12 | Unaffected relatives n = 14 | |
| Men/women | 7/6 | 6/6 | 3/11 |
| Age, yr | 40.8 (9.8) [21–52] | 42.9 (9.2) [24–55] | 35.5 (13.4) [19–61] |
| Age at onset, yr | NA | 24.0 (9.2) | NA |
| Episodes before Li | NA | 8.7 (5.7) | NA |
| Li treatment, yr | NA | 11.9 (6.4) | NA |
BD = bipolar disorder; Li = lithium; NA = not applicable; SD = standard deviation.
↵* Unless otherwise indicated.