Table 4.
Early Twenties (Ages 20–22) and Adult (Ages 27–30) Substance Use Problems
| Early Twenties Substance Use Problems (Ages 20–22) | Adult Substance Use Problems (Ages 27–30) | |||||||
|---|---|---|---|---|---|---|---|---|
| r | β | ΔR2 | R2 | r | β | ΔR2 | R2 | |
| Step I. Demographic Factors | ||||||||
| Gender (1-M; 2=F) | −.19* | −.02 | .09 | .03 | ||||
| Total Family Income (13) | .23** | .14* | .12 | .04 | ||||
| Statistics for Step | .080*** | .080*** | .022 | .022 | ||||
| Step II. Baseline Assessments | ||||||||
| Age of first use | −.24** | −.01 | −.22** | −.03 | ||||
| Total Frequency of Substance Use (13–17) | .44*** | .25** | .35*** | .26** | ||||
| Statistics for Step | .140*** | .220*** | .126*** | .148*** | ||||
| Step III. Adolescent-era Risks | ||||||||
| Family conflict (13,16) | .06 | −.00 | .09 | −.17* | ||||
| Popularity with Peers (13) | .16* | .09 | .11 | .02 | ||||
| Adol. Criminal Behavior (13–17) | .22** | −.01 | .20* | −.00 | ||||
| Close Peer Use (13–17) | .21** | −.04 | .14 | −.05 | ||||
| Statistics for Step | .003 | .223*** | .002 | .150*** | ||||
| Step IV. Developmental Risks | ||||||||
| Social Skills (13–17) | −.48*** | −.39*** | −.28*** | −.32*** | ||||
| Self-concept (13–17) | −.17* | −.04 | −.25** | −.13* | ||||
| Statistics for Step | .110*** | .333*** | .125*** | .275*** | ||||
Note.
p < .001.
p < .01.
p < .05.
β weights are from final model.