Table 3.
Logistic Regression: Impact of Substance Use Onset on Suicide Risk Factors by Gender (Controlling for grade, parental education, family living structure, ethnicity, and site)
| Grade of Substance use onset | Depressive symptoms | Suicide Ideation | Suicide Ideation with alcohol and/or drug use | Personal Endorsement of Suicide | Suicide Attempt | |||||
|---|---|---|---|---|---|---|---|---|---|---|
| OR | CI | OR | CI | OR | CI | OR | CI | OR | CI | |
| Boys | ||||||||||
| Grade first drunk | 1.09 | .9–1.3 | 1.02 | .9–1.1 | .91 | .7–1.2 | 1.07 | .9–1.2 | .98 | .8–1.2 |
| Grade first regular smoking | .99 | .8–1.1 | .90* | .8–1.0 | .87 | .7–1.0 | .93 | .8–1.0 | .96 | .8–1.1 |
| Grade first got high marijuana | 1.0 | .8–1.2 | .99 | .9–1.1 | .91 | .7–1.2 | 1.00 | .9–1.2 | 1.14 | .9–1.4 |
| Grade first hard drug use | .74*** | .6–.9 | .86* | .8–1.0 | .74** | .6–.9 | .76*** | .6–.9 | .65*** | .5–.8 |
| Girls | ||||||||||
| Grade first drunk | .88* | .8–1.0 | .95 | .9–1.0 | .78*** | .7–.9 | .91 | .8–1.0 | .83** | .7–.9 |
| Grade first regular smoking | .93 | .8–1.0 | .92* | .9–1.0 | .87* | .8–1.0 | .90* | .8–1.0 | .92 | .8–1.0 |
| Grade first got high marijuana | 1.0 | .9–1.1 | .97 | .9–1.0 | .99 | .9–1.1 | 1.0 | .9–1.2 | 1.06 | .9–1.2 |
| Grade first hard drug use | .93 | .8–1.1 | .92 | .8–1.0 | .80** | .7–.9 | .91* | .8–1.0 | .87* | .7–1.0 |
*
<p=.05,
**
<p=.01,
***
<p=.001 Note: Results of covariates are not reported in this table. Due to missing data, total number of responses varies by outcome measure. Due to small n’s for some racial/ethnic categories in the suicide attempt, ideation with drug use, and depression among boys, the race/ethnic variable was excluded in these models.