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Table 3 The independent and interactive effects of DRD2 and DRD4 on lifetime conduct problems and composite index of antisocial behavior

From: A gene × gene interaction between DRD2 and DRD4 is associated with conduct disorder and antisocial behavior in males

  Lifetime Conduct Problems Composite Index of Antisocial Behavior
  b SE z p b SE z p
Polymorphisms         
   DRD2 .010 .06 1.52 .127 .205 .16 1.31 .189
   DRD4 .041 .07 .56 .575 -.113 .22 -.52 .600
   DRD2 × DRD4 .296 .10 3.00 .003 .656 .23 2.85 .004
Control variables         
   Age -.084 .03 -3.18 .001 -.080 .06 -1.25 .210
   Race .338 .11 3.14 .002 .557 .26 2.11 .035