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Table 1 p-Values for the two tests of G×A interaction (gsdalc = gsdnalc and ρG = 1) for several quantitative phenotypes.

From: Effect of genotype × alcoholism interaction on linkage analysis of an alcoholism-related quantitative phenotype

   p-Values
   COGA DSM-IV
Trait G×A interactiona Aldx1a Aldx1b Aldx2a Aldx2b
lnMXDRNK gsdalc = gsdnalc 0.359 0.001 0.242 0.018
  ρG = 1 0.118 0.006 0.006 0.071
cigpky gsdalc = gsdnalc 0.452 0.639 0.728 0.329
  ρG = 1 0.067 0.075 0.004 0.038
ecb211 gsdalc = gsdnalc 0.145 0.730 0.246 0.397
  ρG = 1 1.000 1.000 0.450 0.496
ttth1 gsdalc = gsdnalc 0.729 0.804 0.772 0.853
  ρG = 1 0.352 1.000 0.211 1.000
ttth3 gsdalc = gsdnalc 0.453 0.510 0.425 0.971
  ρG = 1 0.362 0.348 0.227 0.227
ttdt3 gsdalc = gsdnalc 0.829 0.793 0.814 0.695
  ρG = 1 0.135 0.493 0.200 0.081
ntth4 gsdalc = gsdnalc 0.172 0.702 0.236 0.716
  ρG = 1 1.000 1.000 1.000 1.000
  1. a gsdalc = gsdnalc = difference in magnitude; ρG (correlation in genetic effects) = 1