Table 1.
Characteristics of the sample.
| Variable |
Total sample (n = 10 794)a |
Never‐smokers (n = 5437) |
Smoking experimenters (n = 2396) |
Weekly smokers (n = 452) |
Daily smokers (n = 1575) |
|---|---|---|---|---|---|
| Age (mean, SD) | 15.23 (1.04) | 15.05 (0.99) | 15.32 (1.00) | 15.41 (0.96) | 15.80 (1.11) |
| Male (n, %) | 5146 (47.87%) | 3052 (47.16%) | 1084 (45.43%) | 206 (45.78%) | 804 (51.31%) |
| Father smokes (n, %) | 2850 (30.40%) | 1405 (23.20%) | 654 (31.81%) | 128 (33.16%) | 663 (50.19%) |
| Mother smokes (n, %) | 2302 (23.58%) | 1067 (16.74%) | 522 (24.53%) | 91 (22.58%) | 622 (44.88%) |
| Number of cigarettes per month (mean, SD) | 49.69 (161.41) | – | 0.42 (0.67) | 37.49 (16.46) | 321.99 (301.11) |
| Cigarette buyer (n, %) | – | – | 141 (3.80%) | 186 (22.79%) | 1216 (45.46%) |
| Personal income (n, %) | |||||
| Quintile 1 (lowest) | 3305 (31.03%) | 2332 (37.96%) | 635 (26.80%) | 79 (17.59%) | 259 (16.69%) |
| Quintile 2 | 2446 (22.96%) | 1496 (23.91%) | 541 (22.84%) | 118 (26.28%) | 291 (18.75%) |
| Quintile 3 | 1854 (17.41%) | 1055 (17.20%) | 451 (19.04%) | 74 (16.48%) | 274 (17.65%) |
| Quintile 4 | 1533 (14.39%) | 703 (10.48%) | 391 (16.50%) | 101 (22.49%) | 338 (21.78%) |
| Quintile 5 (highest) | 1513 (14.21%) | 695 (10.45%) | 351 (14.82%) | 77 (17.15%) | 390 (25.13%) |
| Family socio‐economic status | |||||
| Family affluence scale (mean, SD) | 5.47 (5.47) | 5.50 (1.27) | 5.52 (1.25) | 5.61 (1.25) | 5.25 (1.42) |
| Subjective social status (mean, SD) | 6.74 (1.51) | 6.81 (1.50) | 6.69 (1.47) | 6.83 (1.47) | 6.47 (1.63) |
| Low education, father (n, %) | 2286 (25.96%) | 1241 (22.71%) | 513 (25.65%) | 102 (26.29%) | 430 (33.67%) |
| Low education, mother (n, %) | 1909 (20.98%) | 1058 (18.66%) | 424 (20.69%) | 81 (20.20%) | 346 (25.90%) |
| Country | |||||
| Belgium (n, %) | 2059 (19.08%) | 1023 (16.04%) | 543 (22.66%) | 102 (22.57%) | 391 (24.83%) |
| Finland (n, %) | 1483 (3.74%) | 951 (15.05%) | 288 (12.02%) | 72 (15.93%) | 172 (10.92%) |
| Germany (n, %) | 1416 (13.12%) | 943 (15.14%) | 303 (12.65%) | 37 (8.19%) | 133 (8.44%) |
| Italy (n, %) | 2063 (19.11%) | 1057 (15.96%) | 474 (19.78%) | 106 (23.45%) | 426 (27.05%) |
| Netherlands (n, %) | 1900 (17.60%) | 1303 (21.96%) | 371 (15.48%) | 61 (13.50%) | 165 (10.48%) |
| Portugal (n, %) | 1873 (17.35%) | 1094 (15.85%) | 417 (17.40%) | 74 (16.37%) | 288 (18.29%) |
a
The total sample does not correspond to the sum of the samples for categories because smoking experimenters do not include those who have just tried a few puffs in their lifetime. SD = standard deviation.