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Relationships among Moderators
| Pearson or Phi coefficients |
Gender | FHP | Age of Onset | DRD4 | OPRM1 |
|---|---|---|---|---|---|
| FHP | 0.15* | – | |||
| Age of Onset | 0.15 | 0.03 | – | ||
| DRD4 | 0.21* | 0.14 | 0.21 | – | |
| OPRM1 | −0.17 | −0.05 | 0.00 | −0.05 | – |
p < .05
FHP refers to family history proportion; DRD4 refers to the variable number of tandem repeats (VNTR) polymorphism of the dopamine D4 receptor gene; OPRM1 refers to the Asn40Asp single nucleotide polymorphism of the μ opiate receptor gene.
