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. Author manuscript; available in PMC: 2017 Mar 15.
Published in final edited form as: Biol Psychiatry. 2015 May 14;79(6):489–498. doi: 10.1016/j.biopsych.2015.05.007

Table 1.

Characteristics of Participants at Retesting and Over Follow-Up HD AUD subgroups

Demographics & Health LD
n=70
HD
n=86
Low
n=26
Intermediaten=51 High
n=9
Age (years) 31.3 (0.4) 30.3 (0.3) 31.0 (0.6) 30.0 (0.4) 29.9 (1.2)
Education (years) 18.0 (0.4) 16.2 (0.2)*** 15.9 (0.4) 16.3 (0.3) 16.0 (1.2)
Sex (male) 49% 57% 50% 61% 56%
Race (Caucasian) 67% 83%* 77% 84% 89%
Family History Positive (AUD) a 34% 44% 35% 51% 67%
Age at First Drink (years) 17.7 (0.3) 15.0 (0.3)*** 15.5 (0.4) 14.8 (0.3) 14.2 (0.8)
Beck Depression Inventory 3.1 (0.4) 4.3 (0.5) 2.3 (0.6) 4.7 (0.6) 7.8 (1.7)**i
Spielberger State Anxiety (T-Score) 47.7 (0.9) 48.8 (0.8) 45.9 (1.2) 49.0 (1.1) 56.4 (2.2) ***j
Marijuana Use (weekly or more) 1% 26%*** 19% 24% 56%*k
Cigarette Use (weekly or more) 1% 37%*** 19% 28% 78%*j
Stimulant Use (monthly or more)b 0% 5% 4% 2% 22%* j
Major Axis I Disorder c 6% 12% 4% 12% 33%*k
Substance Dependence d 0% 11%* 0% 12% 33%*k
Nicotine Dependence c 0% 19%*** 8% 22% 56%*j
AST (units/L)e 20.8 (0.7) 22.2 (1.2) 23.7 (3.6) 21.3 (0.9) 23.1 (2.9)
ALT (units/L)e 20.1 (1.8) 21.6 (2.0) 24.0 (5.8) 20.2 (1.4) 22.1 (4.9)

Average Drinking Over Follow- Upf

Frequency (days/month) 6.8 (0.5) 12.1 (0.5)*** 10.1 (1.0) 12.5 (0.6) 15.5 (2.4)*k
Quantity (drinks/drinking day) 1.8 (0.1) 5.0 (0.2)*** 4.0 (0.3) 5.1 (0.3) 7.5 (0.8) ***i

Maxima Drinking Over Follow- Upg

Max # drinks in one occasion 4.6 (0.2) 12.6 (0.6)*** 10.7 (1.0) 13.0 (0.6) 18.6 (3.0) ***j
Binge Frequency (days/month) h 1.1 (0.2) 10.2 (0.5)*** 7.5 (0.7) 10.3 (0.5) 17.2 (2.5) ***i
AUD symptom count 0.6 (0.1) 2.8 (0.2)*** 0.9 (0.2) 3.2 (0.2) 6.4 (0.6) ***i
AUDIT total score 5.3 (0.3) 14.8 (0.7)*** 10.2 (0.7) 15.6 (0.8) 23.8 (1.9) ***i
DrInC-2R total score 7.2 (0.9) 23.9 (1.4)*** 14.8 (1.8) 25.0 (1.5) 44.0 (2.6) ***i

Note. Data are Mean (SEM) or N (%).

*

p < .05,

**

p < .01,

***

p < .001

Data pertain to that obtained during or self-report of use patterns the year prior to re-examination, unless otherwise noted;

a

Family history positive defined as having one biological primary or three or more biological secondary relatives with an alcohol use disorder;

b

Stimulant use included both prescription and recreational drugs;

c

Ever meeting DSM-IV major Axis I diagnosis (depression, anxiety disorders, etc.) or nicotine dependence at any point during the follow-up period;

d

Seven of the nine substance dependent persons met criteria for cannabinoids, one for cocaine, and one for prescription opiates;

e

Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) blood tests for liver functioning;

f

Drink based on standard definition of one drink = 12 oz. beer, 5 oz. wine, or 1.5 oz. liquor, from average of past month TLFB interviews at 1-, 2, 4-, 5-, and 6-years;

g

Refer to maxima of TLFB or survey measures from 1-, 2-, 4-, 5-, and 6-year follow-up;

h

Binge defined as ≥5 drinks per occasion for males and ≥4 drinks for females.

i

High>Intermediate>Low;

j

High>Intermediate=Low;

k

High>Low, High=Intermediate;

l

High=Intermediate>Low