Table 2.
Baseline characteristics and differences in baseline characteristics between posttest responders and posttest dropouts.
| Variable | Total (n=1082) |
Posttest responders (n=410) |
Posttest dropouts (n=672) |
Analysis t value | χ2 P value | |
| Age (years), mean (SD) | 49.89 (11.32) | 52.4 (10.2) | 48.3 (11.7) | 5.80 | <.001a | |
| Gender, n (%) |
|
|
|
6.14 | .01a | |
|
|
Male | 632 (58.4) | 220 (53.7) | 412 (61.3) | —h | — |
|
|
Female | 450 (41.6) | 190 (46.3) | 260 (38.7) | — | — |
| Employed, n (%) | 726 (70.9) | 271 (70.6) | 455 (71.1) | 0.03 | .86 | |
| Education, n (%) |
|
|
|
26.60 | <.001a | |
|
|
Highb | 583 (57.0) | 257 (66.8) | 326 (51.1) | — | — |
|
|
Middlec | 286 (28.0) | 91 (23.6) | 195 (30.6) | — | — |
|
|
Lowd | 154 (15.1) | 37 (9.6) | 117 (18.3) | — | — |
| Weekly alcohol consumption, mean (SD) | 36.6 (24.5) | 33.3 (21.8) | 38.7 (25.8) | −3.69 | <.001a | |
|
|
Male | 42.4 (26.5) | 40.0 (24.7) | 43.7 (27.3) | −1.71 | .09 |
|
|
Female | 28.5 (18.7) | 25.5 (14.4) | 30.7 (21.0) | −3.08 | <.001a |
| AUDIT e , mean (SD) | 17.2 (6.7) | 15.8 (6.1) | 18.0 (6.9) | −5.27 | <.001a | |
|
|
Male | 18.2 (6.3) | 17.1 (6.0) | 18.8 (6.5) | −3.13 | <.001a |
|
|
Female | 15.7 (6.8) | 14.4 (5.9) | 16.7 (7.3) | −3.71 | <.001a |
| DRSEQ f , mean (SD) | 25.4 (7.4) | 24.8 (7.4) | 25.8 (7.3) | −2.17 | .03a | |
|
|
Male | 25.0 (7.3) | 24.1 (7.3) | 25.4 (7.3) | −2.21 | .03a |
|
|
Female | 26.0 (7.4) | 25.6 (7.5) | 26.4 (7.3) | −1.06 | .29 |
| OCDSg, mean (SD) | 5.3 (3.2) | 5.2 (3.0) | 5.4 (3.3) | −1.31 | .19 | |
| Other substances, n (%) | 452 (41.8) | 141 (34.4) | 311 (46.3) | 14.8 | <.001a | |
|
|
Tobacco | 338 (31.2) | 100 (24.4) | 238 (35.4) | 14.41 | <.001a |
|
|
Benzodiazepines | 142 (13.1) | 45 (11.0) | 97 (14.4) | 2.67 | .10 |
|
|
Cannabis | 108 (10.0) | 24 (5.9) | 84 (12.5) | 12.52 | <.001a |
|
|
Others | 209 (19.3) | — | — | — | — |
aP<.05 (two-tailed).
bUniversity of research or university of professional education.
cHigher general secondary education or intermediate vocational education.
dPrimary school or lower vocational education.
eAUDIT: Alcohol Use Identification Test.
fDRSEQ: Drinking Refusal Self-Efficacy Questionnaire.
gOCDS: Obsessive Compulsive Drinking Scale.
hNot applicable.