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Table 2 Descriptive statistics of MXDRNK phenotype according to diagnostic criteria and affection status

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

  MXDRNK
Diagnostic Criteria Affection statusa Mean Variance Range n
ALDX1 1 4.25 11.41 1.0–30.0 285
  2 0.00 0.00 0.0 29
  3 12.87 95.32 4.0–72.0 431
  5 25.41 186.94 5.0–72.0 621
ALDX2 1 4.25 11.41 1.0–30.0 285
  2 0.00 0.00 0.00 29
  3 14.42 106.89 4.0–68.0 531
  5 26.24 198.99 5.0–72.0 521
  1. a1, pure unaffected; 2, never drank; 3, unaffected with some symptoms; 5, affected