Unweighted data | Weighted data | |||||
---|---|---|---|---|---|---|
2011 | 2013 | p Value | 2011 | 2013 | p Value | |
Total number of students surveyed (N) | 6338 | 5915 | 6338 | 5984 | ||
Saw cigarette packs in previous 6 months: N (%) | 3888 (61) | 3852 (65) | <0.001 | 3802 (60) | 3886 (65) | 0.004 |
Among students seeing packs in previous 6 months | ||||||
Sex (% males) | 43 | 49 | <0.001 | 45 | 50 | 0.26 |
Age | <0.001 | 0.79 | ||||
12–15-year olds | 62 | 69 | 66 | 68 | ||
16–17-year olds | 38 | 31 | 34 | 32 | ||
Mother smokes (% yes) | 27 | 25 | 0.04 | 27 | 24 | 0.22 |
Father smokers (% yes) | 33 | 31 | 0.14 | 33 | 29 | 0.083 |
Percentage of students with no friends who smoke | 61 | 71 | <0.001 | 64 | 72 | 0.003 |
Smoking status (%) | ||||||
NSNS | 56 | 65 | <0.001 | 58 | 66 | 0.003 |
SNS | 9 | 9 | 0.48 | 9 | 9 | 0.87 |
ES | 23 | 18 | <0.001 | 22 | 17 | 0.002 |
CS | 12 | 8 | <0.001 | 11 | 7 | 0.008 |
CS, smoking in past week/established smokers; ES, experimental smokers; NSNS, non-susceptible never-smokers; SNS, susceptible never-smokers.