Table 3.
Binary logistic regression model predicting group membership (aggression vs. control) with ETI, LSRP-1, LSRP-2, and T/C ratio as predictor variables.
| Predictor | B | Standard error | Wald statistic | p | Exp B (odds ratio) | 95% confidence interval |
|
|---|---|---|---|---|---|---|---|
| Lower | Upper | ||||||
| T/C ratio | 0.25 | .40 | 0.38 | .537 | 1.28 | 0.59 | 2.78 |
| ETI | 0.19 | .09 | 4.40 | .036 | 1.21 | 1.01 | 1.44 |
| LSRP-1 | −0.08 | .06 | 1.80 | .179 | 0.92 | 0.82 | 1.04 |
| LSRP-2 | 0.55 | .12 | 22.29 | <.001 | 1.73 | 1.38 | 2.18 |
Note: R2 = .71 (Nagelkerke). Model χ2(1) = 75.67, p < .001. ETI: Early Trauma Inventory; LSRP-1: Levenson Self-Report Psychopathy factor 1; LSRP-2: Levenson Self-Report Psychopathy factor 2; T/C: testosterone/cortisol.