Table 2.
Antidepressant Use Before Diagnosis, Stratified by Time Between First Mental Health Encounter and Diagnosis of Bipolar Disorder (N = 1084)
| Variable | Time Between First Mental Health-Related Encounter and Bipolar Diagnosis | ||||
|---|---|---|---|---|---|
| Overall N (%) | < 6 mosN (%) | 6 mos to < 2 yN (%) | 2 to < 4 yrsN (%) | > 4 yrsN (%) | |
| No. of antidepressants | |||||
| 0 | 432 (39.9) | 254 (70.8) | 59 (27.7) | 47 (27.5) | 72 (21.1) |
| 1 | 297 (27.4) | 89 (24.8) | 74 (34.7) | 56 (32.8) | 78 (22.9) |
| 2 | 161 (14.9) | 12 (3.3) | 47 (22.1) | 32 (18.7) | 70 (20.5) |
| 3 | 75 (6.9) | 4 (1.1) | 17 (8.0) | 11 (6.4) | 43 (12.6) |
| 4 | 44 (4.1) | 0 (0.0) | 13 (6.1) | 9 (5.3) | 22 (6.5) |
| > 4 | 75 (6.9) | 0 (0.0) | 3 (1.4) | 16 (9.4) | 56 (16.4) |
| Mean days exposed | 262.4 (± 522.6) | 11.7 (± 27.7) | 136.6 (± 150.6) | 259.7 (± 310.7) | 606.2 (± 782.2) |
| Proportion of follow-up time exposed | 22.5% (±30.1) | 17.1% (± 32.0) | 32.9% (± 32.9) | 23.9% (± 29.0) | 21.1% (± 24.6) |
| TOTAL | 1084 (100.0) | 359 (33.1) | 213 (19.7) | 171 (15.8) | 341 (31.5) |