Numbers of children in sample and percentage prevalence of smoking, by sex and year
| Year 7 | Year 8 | Year 9 | Year 10 | Year 11 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Smoking behaviour | Boys | Girls | Total | Boys | Girls | Total | Boys | Girls | Total | Boys | Girls | Total | Boys | Girls | Total | All boys | All girls | Total |
| Number | 606 | 580 | 1186 | 726 | 616 | 1342 | 657 | 642 | 1299 | 771 | 717 | 1488 | 606 | 601 | 1207 | 3366 | 3156 | 6522 |
| Never smoked | 75.6 | 75.5 | 75.6 | 68.6 | 62.5 | 65.8 | 52.5 | 44.6 | 48.6 | 40.6 | 30.0 | 35.5 | 42.4 | 24.5 | 33.5 | 55.6 | 46.6 | 51.2 |
| Smoked once | 17.0 | 15.9 | 16.4 | 18.3 | 22.9 | 20.4 | 25.3 | 20.4 | 22.9 | 27.2 | 20.2 | 23.9 | 21.6 | 20.5 | 21.0 | 22.1 | 20.0 | 21.1 |
| Used to smoke | 4.3 | 6.6 | 5.4 | 7.7 | 10.1 | 8.8 | 7.9 | 13.4 | 10.6 | 11.4 | 18.7 | 14.9 | 12.5 | 18.1 | 15.3 | 8.9 | 13.6 | 11.6 |
| Current smoker | 3.1 | 2.1 | 2.7 | 5.4 | 4.6 | 5.0 | 14.3 | 21.7 | 18.0 | 20.8 | 31.1 | 25.7 | 23.5 | 36.9 | 30.2 | 13.5 | 19.8 | 16.5 |
| Regular | 1.5 | 1.2 | 1.4 | 2.9 | 2.4 | 2.7 | 10.4 | 14.0 | 12.2 | 14.7 | 25.0 | 19.6 | 18.5 | 28.1 | 23.3 | 9.6 | 14.6 | 12.0 |
| Occasional | 1.7 | 0.9 | 1.3 | 2.5 | 2.1 | 2.3 | 4.0 | 7.6 | 5.8 | 6.1 | 6.1 | 6.1 | 5.0 | 8.8 | 6.9 | 3.9 | 5.2 | 4.5 |