Predictor analysis of disease progression during lithium prophylaxis of 55 patients with recurrent major depressive disorder
| Predictor variables | Morbidity-Index | Time to first recurrence | ||
|---|---|---|---|---|
| Beta | p | Hazard ratio | p | |
| Comedication | −0.09 | 0.55 | 1.36 | 0.531 |
| Sex | −0.15 | 0.30 | 0.89 | 0.800 |
| Age at onset | −0.09 | 0.58 | 0.99 | 0.445 |
| Family history | −0.09 | 0.56 | 1.22 | 0.674 |
| Prior admissions | −0.11 | 0.48 | 0.84 | 0.275 |
| Prior hospitalization, d/yr | −0.03 | 0.88 | 1.0 | 0.235 |
| Latency | −0.04 | 0.85 | 1.0 | 0.971 |
Model summaries: Morbidity-Index: R2 = 0.062, F = 4.4, df = 7, p = 0.87.
Cox-regression: chi-square = 5.04, df = 7, p = 0.655.