Table 4.
Baseline (Time 1) predictors | Class 1 Consistent low | Class 2 Low to high | Class 3 High to low | Class 4 Consistent high |
Demography | ||||
Sex, female, % | 3.60 [2.47, 5.31] | 0.37 [0.23, 0.59] | 0.59 [0.35, 0.97] | 0.22 [0.08, 0.64] |
Age | 0.63 [0.51,0.78] | 1.67 [1.73, 2.26] | ||
Alcohol | ||||
Age onset drinking | 1.32 [1.08, 1.60] | |||
First 5 SRE [LR] | 0.45 [0.37, 0.55] | 1.70 [1.38, 2.11] | 3.01 [2.07,4.38] | |
Flush score no. | 0.57 [0.36, 0.91] | |||
AUD, % | 0.40 [0.27, 0.60] | 2.68 [1.62, 4.46] | 6.97 [2.98, 16.26] | |
Drugs | ||||
Used tobacco > 100 times % | 0.56 [0.38, 0.83] | 1.64 [1.04, 2.58] | 3.25 [1.44, 7.34] | |
Externalizing | ||||
No. of conduct disorder symptoms | 1.45 [1.02,2.06] | |||
Barrett impulsivity | 0.80 [0.64, 0.98] | 1.64 [1.08, 2.42] | ||
NEO extraversion | 0.81 [0.67, 0.99] | 1.56 [1.18, 2.08] | ||
NEO conscientiousness | 0.75 [0.57, 0.99] | |||
NEO openness | 1.25 [1.02, 1.52] | |||
Internalizing | ||||
NEO neuroticism | 0.80 [0.65, 0.98] | 1.55 [1.23, 1.95] | 0.64 [0.44, 0.94] | |
Environment/attitudes | ||||
Peer maximum drinks | 0.64 [0.51, 0.81] | 1.33 [1.02, 1.73] | ||
z alcohol expectancy | 1.37 [1.03, 1.83] | |||
Drink to cope | 0.40 [0.27, 0.60] | 1.42 [1.14, 1.77] | ||
Pseudo R2 | .45 | .23 | .20 | .51 |
Notes: Blank cells = nonsignificant; continuous variables were entered as standardized variables. SRE = self-report measure of the number of drinks need for effects the first five times drinking; LR = level of response; no. = number; AUD = alcohol use disorder; NEO = NEO Five-Factor Inventory personality inventory with scores presented as T values where 50 indicates an average score regarding the literature; peer maximum drinks = from Important Persons and Activity Scale; alcohol expectancy = Alcohol Expectancy Questionnaire (adult and adolescent); z alcohol expectancy = scales z scored within adults and within adolescents.