Table 1.
Odds of completing the follow-up questionnaire during or after telephone follow-up (2013–14) among completers (n = 693).
| Provided follow-up data by web or post (%), N = 520 | Provided follow-up data during or after telephone follow-up (%), N = 173 | Unadjusted odds ratio (95% confidence interval) | Adjusted odds ratiob (95% confidence interval) |
|
|---|---|---|---|---|
| Gender | ||||
| Women | 136 (26.2) | 40 (23.1) | 1.00 | 1.00 |
| Men | 384 (73.9) | 133 (76.9) | 1.18 (0.79–1.76) | 1.33 (0.86–2.06) |
| Age group | ||||
| 18–34 years | 127 (24.4) | 92 (53.2) | 5.74 (3.55 − 9.30) | 3.98 (2.36 − 6.70) |
| 35–54 years | 179 (34.4) | 54 (31.2) | 2.39 (1.45 − 3.95) | 1.75 (1.02 − 3.00) |
| 55 + years | 214 (41.2) | 27 (15.6) | 1.00 | 1.00 |
| Provided a cell/mobile phone number | ||||
| No | 166 (31.9) | 16 (9.3) | 1.00 | 1.00 |
| Yes | 354 (68.1) | 157 (90.8) | 4.60 (2.66 − 7.95) | 3.45 (1.93 − 6.19) |
| Study Group | ||||
| Control | 277 (53.3) | 85 (49.1) | 1.00 | 1.00 |
| Intervention | 243 (46.7) | 88 (50.9) | 1.18 (0.84 − 1.67) | 1.22 (0.84 − 1.76) |
| SEIFA percentilea (continuous), median (25th, 75th percentile) | 51 (36, 57) | 51 (43, 57) | 1.00 (0.99 − 1.01) | 0.99 (0.98 − 1.00) |
| Baseline AUDIT-C score (continuous), median (25th, 75th percentile) | 6 (5,7) | 7 (6, 8) | 1.23 (1.09 − 1.40) | 1.16 (1.01 − 1.33) |
Estimated odds ratios whose 95% confidence intervals do not include 1 are in boldface
a
Excludes 9 participants from areas with no SEIFA score/percentile due to low population.
b
Adjusted for gender, age group, provision of a cell/mobile phone number, study group, SEIFA percentile, and baseline AUDIT-C score.