Table 1.
Clinical characteristics of reward, relief and habit drinkers
| Reward drinkers (n = 100) | Relief drinkers (n = 19) | Habit drinkers (n = 21) | Statistic | P | Effect size | |
|---|---|---|---|---|---|---|
| Age | 28.77 ± 6.50 | 30.42 ± 5.65 | 28.14 ± 5.20 | F = 0.75 | 0.50 |
 = 0.01 |
| Sex (M/F) | 51/49 (51/49%) | 10/9 (53/47%) | 9/12 (43/57%) | χ2 = 0.52 | 0.77 | φ = 0.06 |
| Cigarette smoker | 43 (43%) | 12 (63%) | 9 (43%) | χ2 = 2.70 | 0.26 | φ = 0.14 |
| THC+ | 20 (20%) | 2 (11%) | 0 (0%) | χ2 = 5.69 | 0.06 | φ = 0.20 |
| BDI-II a , b | 7.09 ± 7.32 | 11.34 ± 7.90 | 11.29 ± 11.89 | F = 3.77 | 0.03 |
 = 0.05
|
| STAI Trait a , b | 37.12 ± 9.28 | 47.42 ± 7.96 | 41.76 ± 10.01 | F = 10.53 | <0.001 |
 = 0.13
|
| STAI state | 53.32 ± 2.96 | 52.53 ± 4.18 | 52.67 ± 3.75 | F = 0.70 | 0.50 |
 = 0.01 |
| BAI a | 4.83 ± 5.00 | 10.05 ± 9.74 | 7.52 ± 7/47 | F = 6.42 | 0.002 |
 = 0.09
|
| AUD severity (none/mild/moderate/severe) | 51/21/19/9 | 8/3/6/2 | 7/6/4/4 | χ2 = 4.95 | 0.55 | φ = 0.19 |
| Total drinking days (TLFB) | 16.25 ± 6.47 | 16.84 ± 6.44 | 19.05 ± 7.49 | F = 1.55 | 0.22 |
 = 0.02 |
| Drinks per day (TLFB) | 2.94 ± 2.13 | 2.83 ± 1.53 | 3.39 ± 2.70 | F = 0.44 | 0.65 |
 = 0.01 |
| Drinks per week (TLFB) | 20.56 ± 14.92 | 19.79 ± 10.72 | 23.70 ± 18.91 | F = 0.44 | 0.65 |
 = 0.01 |
| Drinks per drinking day (TLFB) | 5.41 ± 2.94 | 5.35 ± 2.94 | 5.01 ± 2.45 | F = 0.17 | 0.85 |
 = 0.002 |
| Binge days (TLFB) | 8.16 ± 6.66 | 8.79 ± 7.39 | 8.10 ± 7.30 | F = 0.07 | 0.93 |
 = 0.001 |
| CIWA-Ar b | 0.71 ± 1.36 | 1.16 ± 1.74 | 2.14 ± 3.09 | F = 5.81 | 0.004 |
 = 0.08
|
| ADS | 10.33 ± 5.56 | 12.37 ± 5.05 | 11.81 ± 5.87 | F = 1.46 | 0.24 |
 = 0.02 |
| AUDIT | 12.66 ± 6.13 | 14.95 ± 6.88 | 13.52 ± 7.06 | F = 1.08 | 0.34 |
 = 0.02 |
| OCDS a , b | 6.97 ± 4.22 | 9.95 ± 5.39 | 9.33 ± 5.48 | F = 4.87 | 0.009 |
 = 0.07
|
| PACS a | 7.59 ± 5.43 | 10.89 ± 5.59 | 9.95 ± 7.08 | F = 3.58 | 0.03 |
 = 0.05
|
| Drinking motives—enhancement a , b | 16.00 ± 4.49 | 13.58 ± 4.52 | 13.71 ± 4.65 | F = 3.87 | 0.02 |
 = 0.05
|
| Drinking motives—social | 16.69 ± 4.71 | 15.74 ± 5.24 | 15.67 ± 5.40 | F = 0.59 | 0.56 |
 = 0.01 |
| Drinking motives—conform | 7.31 ± 2.85 | 6.84 ± 2.46 | 8.48 ± 4.54 | F = 1.61 | 0.20 |
 = 0.02 |
| Drinking motives—coping a , c | 10.11 ± 4.08 | 15.37 ± 3.39 | 11.57 ± 5.21 | F = 12.80 | <0.001 |
 = 0.16
|
aReward and relief groups differ, P < 0.05.
bReward and habit groups differ, P < 0.05.
cRelief and habit groups differ, P < 0.05.
Characteristics that significantly differ between groups are displayed in bold type.