Model | Variable | Raven’s Progressive Matrices | Picture Sequence Memory Test | Pattern Comparison Processing Speed Test | |||
---|---|---|---|---|---|---|---|
β | p value | β | p value | β | p value | ||
Covariate model | Sex | 0.147 | <0.001* | 0.148 | <0.001* | 0.019 | 0.550 |
Age | 0.083 | 0.005* | −0.037 | 0.226 | −0.042 | 0.177 | |
Income | −0.064 | 0.041 | 0.070 | 0.032 | 0.060 | 0.069 | |
Education | −0.250 | <0.001* | 0.172 | <0.001* | 0.072 | 0.033 | |
Tobacco use | 0.094 | 0.002* | 0.019 | 0.557 | −0.002 | 0.960 | |
Alcohol use | 0.032 | 0.254 | −0.016 | 0.609 | −0.053 | 0.098 | |
Dizygotic twin status | −0.011 | 0.707 | 0.034 | 0.253 | 0.075 | 0.013 | |
Monozygotic twin status | −0.013 | 0.452 | −0.002 | 0.944 | 0.053 | 0.081 | |
Cannabis involvement | THC+ urine drug screen | 0.057 | 0.089 | −0.121 | <0.001* | −0.132 | <0.001* |
Lifetime cannabis use | 0.046 | 0.233 | 0.028 | 0.486 | −0.007 | 0.873 | |
CUD+ | −0.104 | 0.002* | 0.033 | 0.342 | 0.055 | 0.119 |
CUD = cannabis use disorder; THC = tetrahydrocannabinol.
↵* Significant at the p < 0.005 level.