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Phenotypic correlations across positive and negative subjective initial reactions to cannabis and tobacco in European-American female twins.
| Tobacco + | Tobacco − | Cannabis + | Cannabis − | |
|---|---|---|---|---|
| Tobacco + | 1.0 | - | - | - |
| Tobacco − | 0.08 [0.05–0.12] |
1.0 | - | - |
| Cannabis + | 0.17 [0.15–0.20] |
−0.12 [-0.16- −0.09] |
1.0 | - |
| Cannabis − | 0.23 [0.19–0.25] |
0.28 [0.24–0.30] |
0.11 [0.07–0.13] |
1.0 |
