Table 5. The relationship between potential explanatory variables and lifetime suicidal behavior: results from the binary logistic regression analysis (n=129).
| B | SE | Wald | p-value | OR | 95%CI | |
|---|---|---|---|---|---|---|
| HAM-A | 0.137 | 0.045 | 9.309 | 0.002 | 1.147 | 1.050-1.252 |
| Symmetry obsessions | 1.057 | 0.537 | 3.871 | 0.049 | 2.878 | 1.004-8.248 |
| Washing compulsions | 1.360 | 0.581 | 5.468 | 0.019 | 3.895 | 1.246-12.177 |
| Checking compulsions | 1.487 | 0.731 | 4.135 | 0.042 | 4.422 | 1.055-18.532 |
| Constant | -5.696 | 1.175 | 23.514 | < 0.001 | 0.003 | - |
χ2 = 24.249, p < 0.001, R2 Nagelkerke = 0.291.
HAM-A = Hamilton Anxiety Rating Scale; OR = odds ratios; SE = standard error.
Variable inflation factor (collinearity) between 1.015 and 1.043, indicating no collinearity. Total number of variables initially entered in the model n=10; variables not retained in the model: severe life events (≥ 1), single highest event score, Hamilton Rating Scale for Depression, Beck Depression Inventory, family history of mood disorders, counting compulsions.