Table 1.
Characteristics of the Study Population
| Total N (%) | Males N (%) | Females N (%) | |
| Age (years) | 6146 (100) | 3096 (50.4) | 3045 (49.6) |
| 11–12 | 627 (10.2) | 357 (11.5) | 270 (8.9) |
| 13 | 1757 (28.6) | 884 (28.6) | 873 (28.6) |
| 14 | 1910 (31.1) | 911 (29.4) | 999 (32.8) |
| 15 | 1465 (23.9) | 730 (23.6) | 735 (24.1) |
| 16–17 | 382 (6.2) | 214 (6.9) | 168 (5.6) |
| Education father/stepfather | |||
| Elementary school or less | 1296 (19.8) | 663 (21.4) | 477 (15.7) |
| Middle school | 1025 (16.1) | 493 (15.9) | 502 (16.5) |
| High school | 1803 (28.3) | 834 (27.0) | 934 (30.7) |
| University | 2238 (36.4) | 1106 (35.7) | 1132 (37.1) |
| Education mother/stepmother | |||
| Elementary school or less | 950 (15.5) | 521 (16.8) | 429 (14.1) |
| Middle school | 911 (14.8) | 433 (14.0) | 478 (15.7) |
| High school | 2006 (32.7) | 990 (32.0) | 1016 (33.3) |
| University | 2274 (37.0) | 1152 (37.2) | 1122 (36.9) |
| Visiting grand parents | |||
| Every day | 2266 (37.3) | 1199 (39.1) | 1067 (35.4) |
| 2–5 times/week | 2153 (35.4) | 1080 (35.2) | 1073 (35.7) |
| Once a month or less | 429 (7.1) | 202 (6.6) | 227 (7.5) |
| Never | 1231 (20.2) | 585 (19.1) | 646 (21.4) |
| Parental smoking | |||
| None | 1947 (32.1) | 1020 (33.3) | 927 (30.8) |
| Father only | 1589 (26.2) | 819 (26.8) | 770 (25.6) |
| Mother only | 724 (11.9) | 347 (11.3) | 377 (12.5) |
| Both parents | 1813 (29.9) | 873 (28.5) | 940 (31.2) |
| Smoking status grand parents | |||
| None | 3146 (53.4) | 1568 (52.8) | 1578 (54.0) |
| One or more grand parents | 2747 (46.6) | 1404 (47.2) | 1343 (46.0) |
| Accepting cigarette offered by one of best one's friends smoking | |||
| Definitely not | 4287 (70.7) | 2166 (70.7) | 2121 (70.7) |
| Probably not | 873 (14.4) | 441 (14.4) | 432 (14.4) |
| Probably yes | 697 (11.5) | 342 (11.2) | 355 (11.8) |
| Definitely yes | 204 (3.4) | 111 (3.6) | 93 (3.1) |
| Perception cigarettes smoking harmful | |||
| Definitely yes or probably yes | 5573 (91.7) | 2760 (90.1) | 2813 (93.2) |
| Definitely not or probably not | 507 (8.3) | 303 (9.9) | 204 (6.8) |
| Pocket money | |||
| < 7 Euro | 2267 (44.7) | 1371 (45.6) | 1296 (43.7) |
| 8–15 Euro | 1647 (27.6) | 753 (25.1) | 894 (30.1) |
| 16–23 Euro | 709 (11.9) | 348 (11.6) | 361 (12.2) |
| 24–31 Euro | 369 (6.2) | 202 (6.7) | 167 (5.6) |
| >=32 Euro | 581 (9.6) | 332 (11.0) | 249 (8.4) |
| Current cigarette smoking | |||
| No | 5174 (87.5) | 2576 (86.7) | 2597 (88.2) |
| Yes | 741 (12.5) | 394 (13.3) | 347 (11.8) |