Article Figures & Data
Figures
- Figure 1.
Probability of any alcohol use over time before screening by trajectory class (n = 100). Group percentages are 21% for frequent drinkers (yellow), 28.5% for nearly daily drinkers (orange), and 50.5% for consistent daily drinkers (red). The lines and markers represent the observed probability of any alcohol use among participants within each trajectory class on each day during the screening period. Dotted lines represent the predicted probability of any alcohol use among participants within each trajectory class on a given day during the screening period.
- Figure 2.
Pretreatment goals of reduction in alcohol use (n = 62) (A) and abstinence (n = 37) (B) by trajectory classes over time on percent days abstinent (untransformed). Error bars represent the standard deviation.
- Figure 3.
Pretreatment trajectory classes over time on percent heavy drinking days (untransformed; n = 100). Error bars represent the standard deviation.
- Figure 4.
Pretreatment goal of abstinence versus a reduction in alcohol use on percent heavy drinking days (untransformed; n = 99). Error bars represent the standard deviation. Used with permission from ref. 14. Copyright © 2013 Wiley.
Tables
- Table 1. Sociodemographic and Clinical Characteristics of the Three Trajectory Classes at Screening (n = 100)
Frequent Drinkers (n = 21) Nearly Daily Drinkers (n = 28) Consistent Daily Drinkers (n = 51) Sex* Male 81.0 46.4 62.8 Female 19.0 53.6 37.2 Race/ethnicity† Nonminority 85.7 96.3 92.2 Minority 14.3 3.7 7.8 College education* Yes 28.6 39.3 58.8 No 71.4 60.7 41.2 Married Yes 61.9 57.1 66.7 No 38.1 42.9 33.3 Current tobacco use Yes 57.1 53.6 33.3 No 42.9 46.4 66.7 Family history of alcoholism† Yes 90.0 92.6 96.0 No 10.0 7.4 4.0 Previous alcohol treatment Yes 60.0 60.0 37.5 No 40.0 40.0 62.5 Severity of alcohol dependence† Mild 5.0 11.1 8.5 Moderate 95.0 70.4 68.1 Severe 0.0 18.5 23.4 Physiological dependence*† Yes 61.9 83.3 89.6 No 38.1 16.7 10.4 GGT level High 23.8 33.3 40.0 Normal 76.2 66.7 60.0 Drinking goal* Abstinence 50.0 53.6 23.5 Reduction in use 50.0 46.4 76.5 Condition Acamprosate 47.6 53.6 51.0 Placebo 52.4 46.4 49.0 Age (years)* 42.7 (7.3) 47.8 (7.7) 48.6 (8.0) Duration of alcohol use (years) 24.4 (8.5) 26.6 (8.1) 26.5 (10.4) AUDIT total score 23.0 (5.6) 24.0 (5.9) 22.4 (5.2) CAGE total score 2.7 (1.0) 3.0 (0.8) 2.6 (0.7) CGI score 2.8 (1.5) 3.7 (1.5) 3.5 (1.8) Percent days abstinent‡ 51.0 (8.9) 26.4 (7.4) 6.4 (3.0) Percent heavy drinking days‡ 42.1 (10.5) 60.0 (16.2) 80.0 (23.3) Data are either a percentage or mean (standard deviation). All sociodemographic and clinical characteristic variables had ≤7% missing data with the exception of previous treatment, which had 28% missing data.
↵* P < .05.
↵† Fisher exact test.
↵‡ P < .001.
AUDIT, Alcohol Use Disorders Identification Test; CGI, Clinical Global Impression Scale.
- Table 2. Growth Curve Models of Trajectory Class, Drinking Goal, and Time on Percent Days Abstinent and Percent Heavy Drinking Days (n = 100)
Variables PDA %HDD Num df Den df F P Num df Den df F P Trajectory class 2 216 9.75 <.001 2 216 6.76 <.01 Drinking goal 1 216 5.56 <.05 1 216 0.26 .61 Time 1 284 89.5 <.001 1 284 128.5 <.001 Trajectory class × drinking goal 2 216 0.02 .98 2 216 0.08 .92 Trajectory class × time 2 284 4.15 <.05 2 284 3.23 <.05 Drinking goal × time 1 284 11.67 <.01 1 284 6.63 <.05 Trajectory class × drinking goal × time 2 284 7.54 <.01 2 284 2.14 .12 %HDD, percent heavy drinking days; PDA, percent days abstinent; Num df, numerator degrees of freedom; Den df, denominator degrees of freedom.
