Table 2.
Summary statistics of all variables in the study
| Characteristic | % or M(SD) |
|---|---|
| Age | |
| 16 | 656 (19%) |
| 17 | 1,672 (47%) |
| 18 | 963 (27%) |
| 19 + | 237 (6.7%) |
| Gender | |
| Boys | 1,573 (45%) |
| Girls | 1,955 (55%) |
| Country of birth | |
| Norway | 3,186 (90%) |
| Other | 339 (9.6%) |
| Missing | 3 |
| Subjective socioeconomic status | 7.15 (1.8) |
| Missing | 47 |
| Number of bad experiences on SoMe | 2.00 (1.00, 4.00)a |
| Negative acts and exclusion, SoMe | 1.41 (0.57)a |
| Missing | 226 |
| Unwanted attention from others, SoMe | 1.86 (0.89) |
| Missing | 229 |
| Ever tried alcohol | 2,563 (73%) |
| How often do you drink alcohol? | |
| Less than once | 987 (28%) |
| 1–2 times | 1,346 (38%) |
| 3–4 times | 182 (5.2%) |
| 5 times or more | 23 (0.7%) |
| Never tried alcohol | 965 (28%) |
| Missing | 25 |
| How much do you drink? | |
| 1–2 units | 663 (20%) |
| 3–4 units | 623 (19%) |
| 5–6 units | 614 (18%) |
| 7–9 units | 313 (9.3%) |
| 10 + units | 181 (5.4%) |
| Never tried alcohol | 965 (29%) |
| Missing | 169 |
| Binge drinking | |
| Never | 622 (18%) |
| Yes, once | 247 (7.0%) |
| 2–3 times | 415 (12%) |
| 4–10 times | 415 (12%) |
| 11–20 times | 347 (9.9%) |
| > 20 times | 503 (14%) |
| Never tried alcohol | 965 (27%) |
| Missing | 14 |
| Frequent binge drinking | |
| No | 2,046 (58%) |
| Yes | 503 (14%) |
| Never tried alcohol | 965 (27%) |
| Missing | 14 |
| Score on CRAFFT | 0.86 (1.21) |
| Missing | 4 |
| Case-level CRAFFT | |
| No (< 2) | 1,700 (48%) |
| Yes (2 +) | 859 (24%) |
| Never tried alcohol | 965 (27%) |
| Missing | 4 |
aMedian (IQR)
N = 3,528