Skip to main content
. Author manuscript; available in PMC: 2009 Mar 1.
Published in final edited form as: Alcohol. 2008 Mar;42(2):67–76. doi: 10.1016/j.alcohol.2008.01.002

Table 1.

Demographics and clinical variables

Parameter nsLD ALC HD nsALC sALC nsHD sHD
Number of participants (females) 38 (8) 35 (2) 32 (5) 15 (0) 20 (2) 18 (4) 14 (1)
Age [years] 45.4 ± 8.1 45.9 ± 8.3 42.4 ± 8.9 47.9 ± 8.1 44.4 ± 8.4 42.7 ± 9.9 42.0 ± 7.8
Education [years] 15.8 ± 2.2**$$ 14.0 ± 2.1** 14.4 ± 2.1$$ 13.9 ± 2.3 14.1 ± 2.0 15.1 ± 2.1 13.6 ± 1.7
AMNART 119.9 ± 8.4 110.8 ± 9.2 114.0 ± 8.4 109.5 ± 10.3 111.8 ± 8.5 117.1 ± 6.1 110.5 ± 9.4
Family History Density 0.24 ± 0.31** 0.83 ± 0.49**## 0.38 ± 0.41## 0.81 ± 0.40 0.85 ± 0.56 0.35 ± 0.35 0.42 ± 0.48
Beck Depression Inventory 6.0 ± 5.7 7.9 ± 7.7 9.1 ± 8.4 5.1 ± 5.5 10.1 ± 8.5 8.1 ± 7.3 10.3 ± 9.7
1-yr average [drinks/month] 12 ± 17 385 ± 191## 217 ± 135## 403 ± 207 372 ± 183 205 ± 130 233 ± 144
3-yr average [dri/month] 12 ± 17 369 ± 171## 226 ± 121## 385 ± 180 357 ± 168 213 ± 123 242 ± 121
Lifetime average [dri/month] 15 ± 14 218 ± 109 186 ± 146 193 ± 119 236 ± 100 147 ± 87 236 ± 191
Lifetime years 28.2 ± 5.7 29.3 ± 9.3## 25.5 ± 9.5## 31.6 ± 9.3 27.6 ± 9.2 25.5 ± 10.8 25.6 ± 7.9
Total lifetime consumption [kg] 65 ± 63 1035 ± 664## 792 ± 837## 989 ± 751 1069 ± 609 566 ± 417 1081 ± 302
Onset of heavy drinking [years] - 23.6 ± 9.0 23.4 ± 8.4 26.1 ± 10.3 21.8 ± 7.6 25.7 ± 9.3 20.5 ± 6.2
Months of heavy drinking - 231 ± 107# 174 ± 110# 222 ± 102 238 ± 113 143 ± 116 213 ± 91
Age at first drink [years] 18.2 ± 3.6 16.6 ± 3.2 16.6 ± 3.4 16.3 ± 3.3 16.8 ± 3.2 16.9 ± 2.6 16.4 ± 4.3
Intracranial Volume [cc] 1498 ± 137 1513 ± 124 1472 ± 150 1501 ± 104 1522 ± 139 1468 ± 171 1478 ± 124
Hep-C [n] 0 4 0 2 2 0 0
Hypertension [n] 0 7 0 2 5 0 0
Unipolar mood disorders 0 13 3 5 8 1 2

AMNART = American National Adult Reading Test; 1-yr average = number of drinks per month over 1-year prior to study; 3 yr average = number of drinks per month over 3- years prior to study; Lifetime average = number of drinks per month over lifetime; Lifetime years = number of years of regular alcohol consumption over lifetime. Total lifetime consumption = total amount of pure EtOH (kg) consumed over lifetime. Onset of heavy drinking = age when alcohol consumption exceeded 100 drinks per month

#

contrast between ALC and HD;

*

contrast between ALC and nsLD;

$

contrast between HD and nsLD; for all contrasts: one symbol p < 0.05; two symbols p < 0.01.