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. Author manuscript; available in PMC: 2007 May 15.
Published in final edited form as: Alcohol Clin Exp Res. 2006 Jun;30(6):959–966. doi: 10.1111/j.1530-0277.2006.00109.x

Table 1.

Characteristics of Participant Groups

Tx Naïve Study Abstinent Alcoholic Study Effect Size (%)
Tx Naïve (N=58) Controls (N=58) Abs. Alc (N=43) Controls (N=58) TxN vs. Controls Abs. Alcs Vs TxN Controls Vs Controls
Variable
Age (years) 31.1 ± 7.8 31.3 ± 7.9 46.5 ± 6.6 44.6 ± 6.6 0.0 53.9b 46.0b
Years Education 16.2 ± 1.5 16.5 ± 1.8 15.7 ± 2.1 16.2 ± 1.8 0.7 2.0 0.7
Alcohol Use Variables
Duration of Active Drinking (mos) 181.2 ± 95.2 132.8 ± 98.3 260.6 ± 93.7 251.2 ± 130.3 5.9a 15.7b 19.6b
Average Lifetime Drinking Dose (std. drinks/mos) 84.9 ± 43.3 6.6 ± 6.3 157.8 ± 131.8 6.8 ± 7.1 64.3a 14.2*** 0.2
Duration of Peak Drinking (mos) 55.6 ± 55.1 59.3 ± 90.9 74.4 ± 73.4 121.2 ± 136.8 0.0a 2.6 7.3b
Peak Drinking Dose (std. drinks/mo) 150.9 ± 113.1 14.9 ± 13.6 317.4 ± 250.9 15.9 ± 18.0 41.9a 17.5*** 0.1
Age First met Criteria for Heavy Use 21.2 ± 4.9 N/A 23.5 ± 6.4 N/A N/A 6.3* N/A
Level at First Heavy Use 135.9 ± 42.4 N/A 187.1 ± 117.5 N/A N/A 9.1** N/A
Family Drinking Density
cFamDD_1 0.18 0.12 0.41 0.15 2.6 14.5*** 0.7
dFamDD_2 0.20 0.11 0.25 0.14 6.6** 2.0 0.7
Deviance Proneness & Externalizing Symptoms
CPI Socialization Scale 31.6 ± 5.4 37.2 ± 4.5 27.7 ± 5.9 37.1 ± 3.7 25.4*** 10.4*** 0.2
MMPI Pd Scale 18.7 ± 4.5 16.1 ± 3.2 22.0 ± 4.2 16.0 ± 3.6 10.8*** 11.7*** 0.0
eExternalizing Symptoms (#) 9.8 ± 7.7 5.6 ± 5.1 14.2 ± 7.4 4.7 ± 4.3 9.6*** 9.1** 0.0
Gambling Game 33.2 ± 31.7 38.2 ± 29.2 23.1 ± 30.3 38.2 ± 28.2 0.9 2.0 0.1

Measures are reported mean ± standard deviation. Effect is significance:

*

p≤0.05,

**

p≤0.01,

***

p≤0.001.

a

Statistical comparisons of the groups on alcohol use variables are not valid since alcohol use was part of the group selection criteria.

b

Statistical comparisons on age and variables associated with subject’s age are not appropriate since age was associated with the study selection criteria.

c

Total number of problem drinking 1st degree relatives divided by the total number of1st degree relatives.

d

Total number of problem drinking 2nd degree relatives divided by the total number of 2nd degree relatives.

e

Sum of antisocial personality disorder and conduct disorder symptoms from the DIS N/A: Not applicable; mos: months; std. drinks/mo: number of standard drinks per month