Table 1.
Characteristics of the study sample.
| Demographics n = 187 |
|
|---|---|
| Characteristics | N (%) |
| Gender | |
| Male | 122 (65.2) |
| Female | 65 (34.8) |
| Ethnicity | |
| Asian | 8 (4.3) |
| Black | 23 (12.3) |
| White | 156 (83.4) |
| Age, years | |
| Mean | 46.6 |
| Range | 13–90 |
| Standard deviation | 17.4 |
| Smoking status | |
| Smoker | 99 (52.9) |
| Nonsmoker | 49 (26.2) |
| Don’t know | 39 (20.9) |
| Reason for lamotrigine | |
| Bipolar affective disorder/TRD | 52 (27.8) |
| Clozapine augmentation | 40 (21.4) |
| Other | 87 (46.5) |
| TRS AP augmentation | 8 (4.3) |
| Diagnosis | |
| Bipolar affective disorder | 46 (24.6) |
| Schizoaffective disorder | 15 (8.0) |
| Schizophrenia/TRS | 31 (16.6) |
| Other | 95 (50.8) |
| Taking an enzyme inducer | |
| Yes | 10 (5.3) |
| No | 177 (94.7) |
| Taking an enzyme inhibitor | |
| Yes | 27 (14.4) |
| No | 160 (85.6) |
TRD, treatment-resistant depression; TRS AP, treatment-resistant schizophrenia treated with an antipsychotic other than clozapine.