Fig. 2.
Kaplan–Meier survival curves for time to second hypomania or mania. On survival analysis, those with an initial treatment-associated mania (n = 12) were less likely than those with spontaneous mania (n = 96) to develop a second episode of mania or hypomania (A). Participants with a family history of bipolar disorder (n = 21) were more likely than those without such a family history (n = 87) to experience subsequent episode of mania or hypomania (B).