Table 3.
Regression models predicting severity of prior suicidal ideation and history of suicidea
| Variable | Ideation (range, 0–5)b | Attempt (yes/no)c | ||
|---|---|---|---|---|
| b | 95% CI | Odds ratio | 95% CI | |
| Inhalant (solvent) use | ||||
| None (ref.) | – | – | – | – |
| Use only | 1.36** | 0.47 to 2.24 | 1.41 | 0.84–2.37 |
| Abuse/dependence | 1.46** | 0.52 to 2.40 | 5.13*** | 2.73–9.65 |
| Male gender | −0.61*** | −1.06 to −0.15 | 3.79*** | 2.24–6.42 |
| Gender × use only | −1.04* | −1.97 to −0.11 | N/A | N/A |
| Race | ||||
| White (Ref.) | – | – | – | – |
| Black | −0.83*** | −1.16 to −0.51 | 0.41** | 0.23–0.75 |
| Hispanic | −0.60 | −1.24 to 0.04 | 0.24* | 0.08–0.74 |
| Other | 0.52* | 0.06 to 0.98 | 1.51 | 0.77–2.94 |
| Psychiatric symptoms | 0.02*** | 0.02 to 0.03 | 1.02*** | 1.01–1.03 |
| Trauma | 0.10* | 0.01 to 0.19 | 1.20* | 1.03–1.39 |
Only predictors with statistical significance in at least one model are shown in table. Non-significant variables in both models were age, prior residence (urban/rural) and number of drugs used besides volatile solvents. The linear regression model also contained an interaction term for gender and solvent abuse/dependence.
Multiple linear regression; model F(13, 697) = 32.1, p < .001, adjusted R2 = .36.
Logistic regression; model χ2(11) = 199.3, p < .001, pseudo-R2 = .25.
p < .05.
p < .01.
p < .001.