Table 5.
The effect of user characteristics on extent of alcohol reduction.
| User characteristics | Mean (SD) | Unadjusted linear regression | Adjusteda multiple regression | ||||
|
|
|
|
Bb (95% CI) | P value | B (95% CI) | P value | |
| Age (years) | —c | −.13 (−0.44 to 0.18) | .42 | −.11 (−19.71 to 27.33) | .53 | ||
| Gender | |||||||
|
|
Male (reference; n=63) | 14.4 (26.25) | — | — | — | — | |
|
|
Female (n=116) | 14.2 (22.97) | −.20 (−7.67 to 7.26) | .96 | .51 (−6.95 to 7.96) | .89 | |
| Employment status | |||||||
|
|
Unemployed (reference; n=31) | 10.9 (21.4) | — | — | — | — | |
|
|
Employed (n=148) | 15.0 (24.63) | 4.05 (−5.35 to 13.45) | .40 | 5.07 (−4.73 to 14.89) | .31 | |
| Ethnicity | |||||||
|
|
White (reference; n=172) | 14.5 (24.28) | — | — | — | — | |
|
|
Not white (n=7) | 8.6 (19.91) | −5.92 (−24.29 to 12.45) | .53 | −7.17 (−25.84 to 11.49) | .45 | |
| Educational qualification | |||||||
|
|
Pre-16 (reference; n=36) | 17.2 (26.49) | — | — | — | — | |
|
|
Post-16 (n=143) | 13.6 (23.51) | −3.58 (−12.46 to 5.30) | .43 | −2.96 (−11.93 to 6.01) | .52 | |
| Current smoker | |||||||
|
|
Yes (reference; n=34) | 15.9 (25.42) | — | — | — | — | |
|
|
No (n=145) | 13.9 (23.86) | −1.97 (−11.05 to 7.11) | .67 | .45 (−8.91 to 9.81) | .93 | |
| Past week alcohol consumption (units)d | — | .49 (0.37 to 0.61) | <.001 | .49 (0.37 to 0.62) | <.001 | ||
| Alcohol use (AUDITe score) | — | 1.01 (0.46 to 1.55) | <.001 | .98 (0.40 to 1.55) | <.001 | ||
aAdjusted for all sociodemographic variables, AUDIT score, and treatment group (unless otherwise specified).
bUnstandardized regression coefficient.
cNot applicable.
dAdjusted for all sociodemographic variables and treatment group (not AUDIT score).
eAUDIT: Alcohol Use Disorder Identification Test.