Descriptive Statistics at Baseline, and Attrition Analysis, %
| Baseline Nonsusceptible Never-Drinkers (n = 2706) | Lost to Follow-Up (n = 380) | Analyzed Sample (n = 2326) | Lost to Follow-Up Versus Analyzed Sample P | |
|---|---|---|---|---|
| Country | ||||
| Germany | 21.7 | 21.8 | 21.6 (n = 503) | <.01 |
| Iceland | 35.4 | 36.8 | 35.2 (n = 819) | |
| Italy | 12.9 | 8.7 | 13.6 (n = 315) | |
| Netherlands | 4.2 | 3.4 | 4.3 (n = 101) | |
| Poland | 15.1 | 20.3 | 14.3 (n = 332) | |
| Scotland | 10.7 | 8.9 | 11.0 (n = 256) | |
| Sociodemographics | ||||
| Age at baseline (y), M (SD) | 12.91 (1.10) | 13.18 (1.15) | 12.86 (1.08) | <.001 |
| Gender | ||||
| Female | 53.9 | 50.0 | 54.6 | .101 |
| Male | 46.1 | 50.0 | 45.5 | |
| Family affluence | ||||
| Low | 9.2 | 11.3 | 8.9 | .198 |
| Medium | 36.6 | 37.9 | 36.3 | |
| High | 54.2 | 50.8 | 54.8 | |
| Personal Characteristics | ||||
| School performance | ||||
| Below average | 4.0 | 3.7 | 6.4 | <.01 |
| Average | 25.5 | 24.8 | 29.6 | |
| Good | 44.7 | 45.1 | 42.3 | |
| Excellent | 25.8 | 26.4 | 21.7 | |
| TV screen time per day (h), M (SD) | 1.92 (0.84) | 1.91 (0.89) | 1.92 (0.83) | .746 |
| Sensation seeking and rebelliousness, M (SD) | 0.81 (0.62) | 0.92 (0.70) | 0.79 (0.60) | <.001 |
| Exposure to alcohol use in movies, M (SD) | 3707 (2472) | 4037 (2590) | 3653 (2448) | .005 |
| Social Environment | ||||
| Peer drinking | ||||
| None | 71.3 | 63.3 | 72.7 | <.01 |
| A few | 17.9 | 22.4 | 17.1 | |
| Some | 8.5 | 11.9 | 7.9 | |
| Most or all | 2.3 | 2.4 | 2.3 | |
| Mother figure drinking | ||||
| Never | 37.0 | 39.3 | 36.6 | .682 |
| Seldom | 55.7 | 52.8 | 56.2 | |
| Often but not every day | 6.6 | 7.2 | 6.5 | |
| Every day | 0.7 | 0.8 | 0.7 | |
| Father figure drinking | ||||
| Never | 26.4 | 31.9 | 25.6 | <.05 |
| Seldom | 57.4 | 51.3 | 58.4 | |
| Often but not every day | 13.8 | 14.9 | 13.6 | |
| Every day | 2.4 | 1.9 | 2.5 | |
| Any sibling drinking | ||||
| No | 81.2 | 76.3 | 82.0 | <.01 |
| Yes | 18.8 | 23.7 | 18.0 | |