diagnoses. The four groups were comparable in age and race (Table 1), but were notably unbalanced on sex and this was accounted for statistically. All groups had an average Beck depression total score under 10, which is considered normal35.Table 1Participant demographics by comparison.AUD (n = 17)Non-AUD (n = 28)CUD (n = 26)Non-CUD (n = 19)Age in years29.2 (9.22)30.5 (10.56)28.50 (9.94)32.11 (9.93)Gender (F/M)2/1512/168/186/13Race (Caucasian/African American/other)12/2/322/3/37/0/15/2/2Years of education15.6 (1.82)15.1 (1.79)15.48 (1.78)14.92 (1.81)AUDIT total score12.06 (4.55)4.75 (2.88)6.92 (4.53)8.32 (5.70)CUDIT total score10.59 (4.96)12.50 (5.52)14.15 (4.43)8.53 (4.81)Accuracy (%)89.66 (8.31)93.63 (6.31)93.01 (5.07)90.92 (9.60)Reaction time (ms)515.66 (111.77)522.61 (74.89)523.00 (87.49)515.86 (94.26)Means (standard deviation) for each group. The full sample is represented in the AUD comparison as well as the CUD comparison.
