Table 5. Academic maladjustment and prediction of conversion to psychosis versus nonconversion.
| Predictors | Parameter Estimates | |||||
|---|---|---|---|---|---|---|
|
| ||||||
| β | SE β | Wald | p | HR (eβ) | 95% CI (eβ) | |
| Model 1 (n = 238) | ||||||
| Baseline year | −0.21 | 0.06 | 11.65 | .001 | 0.81 | 0.72–0.92 |
| Childhood acad. adj. | 0.02 | 0.13 | 0.02 | .887 | 1.02 | 0.79–1.32 |
| Early adoles. acad. adj. | −0.09 | 0.13 | 0.49 | .486 | 0.91 | 0.70–1.18 |
| Model 2 (n = 135) | ||||||
| Baseline year | −0.16 | 0.07 | 5.23 | .022 | 0.85 | 0.74–0.98 |
| Childhood acad. adj. | 0.03 | 0.15 | 0.05 | .823 | 1.04 | 0.77–1.39 |
| Early adoles. acad. adj. | 0.10 | 0.16 | 0.36 | .547 | 1.10 | 0.80–1.52 |
| Model 3 (n = 135) | ||||||
| Baseline year | −0.16 | 0.07 | 5.09 | .024 | 0.85 | 0.74–0.98 |
| Childhood acad. adj. | 0.03 | 0.15 | 0.05 | .833 | 1.03 | 0.77–1.39 |
| Early adoles. acad. adj. | 0.05 | 0.24 | 0.04 | .834 | 1.05 | 0.66–1.68 |
| Late adoles. acad. adj. | 0.06 | 0.21 | 0.08 | .783 | 1.06 | 0.70–1.61 |
Note: The reference group is nonconversion, and the method is forced entry. A Cox regression analysis was performed using standardized Premorbid Adjustment Scale ratings. HR, hazard ratio; CI, confidence interval.