Figure 2From: COGA phenotypes and linkages on chromosome 2Linkage analysis of derived phenotypes. SIBPAL linkage analysis on chromosome 2 using only STR data. Outcome variables are phenotypes derived from Alc1 (DSM-III-R criterion of alcoholism) or Alc2 (DSM-IV criterion of alcoholism) and latent variable 1, 2, 7, 9, or 11. Results from phenotypes derived from Alc1 are graphed as solid lines; those derived from Alc2 are graphed as dotted lines. Y-axis is the value of the Haseman-Elston regression coefficient. Significant values are indicated with circles. The graph from Figure 1 is also included for comparison.Back to article page