| last for week | 0.64 |
| last for month | 0.44 |
| become more frequent | 0.43 |
| occur within a 12-month… | 0.38 |
| alternate in individual | 0.36 |
| take three forms | 0.31 |
| last for day | 0.31 |
| last | 0.25 |
| become more severe | 0.23 |
| feel good | 0.22 |
| depression | 0.67 |
| manic symptoms | 0.32 |
| hospitalization | 0.45 |