Table 1.
HLM Regression Estimates of Effects of Early Cannabis Use on the trajectory of Schizotypal Personality Disorder Symptoms over 20 years
| Model 1 | Model 2 | Model 3 | Model 4 | |||||
|---|---|---|---|---|---|---|---|---|
|
| ||||||||
| Variables | b | s.e. | b | s.e. | b | s.e. | b | s.e. |
| Mean Schizotypal symptoms at trajectory | ||||||||
| mean age 23*** | −.28 | .04 | −.25 | .04 | −.36 | .04 | −.27 | .05 |
| Average annual change in schizotypal sxs*** | −.01 | .002 | −.01 | .002 | −.01 | .002 | −.01 | .002 |
| Sex*** | .53 | .06 | .48 | .05 | .56 | .06 | .49 | .05 |
| SES*** | −.20 | .03 | −.14 | .03 | −.19 | .03 | −.14 | .03 |
| Early Cannabis use | .24** | .08 | .20* | .08 | .23** | .08 | .18* | .09 |
| Early Schizotypal*** | .28 | .03 | -- | -- | .27 | .03 | ||
| Early Depression | .26* | .13 | .20 | .12 | ||||
| Early Anxiety | .19** | .06 | .05 | .06 | ||||
| Other Drug Use | .16 | .14 | ||||||
| Cigarette Use | −.02 | .06 | ||||||
*
p <.05,
**
p<.01,
***
p<.0001
Note: Non-significant interactions discussed in the text are not included in the table. The effects for variables noted with 3 stars remained significant throughout every model at the p<.0001 level.