Table 4 Clustering of substance use: percentages of students (aged 13–16) using alcohol in the last month and/or smoking last week and/or using cannabis ever in the survey of 2005 and 2009 (%)
| Â | 2005 | 2009 |
|---|---|---|
(N = 1,850) | (N = 2,044) | |
| Â | Â | a |
No alcohol, no smoking, no cannabis | 36.6 | 52.6 |
No alcohol, smoking, no cannabis | 0.5 | 0.5 |
No alcohol, no smoking, cannabis | 0.6 | 1.7 |
No alcohol, smoking, cannabis | 0.5 | 0.9 |
Alcohol, no smoking, no cannabis | 38.8 | 27.2 |
Alcohol, smoking, no cannabis | 2.5 | 2.6 |
Alcohol, no smoking, cannabis | 10.1 | 6.6 |
Alcohol, smoking, cannabis | 10.4 | 7.9 |